U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 101/401.1 - Blanks and processes


Subclass of Class 101 - Printing
Definition: Devices consisting of printing or impression blanks, plates,
No. of patents: 538
Last issue date: 05/08/2012


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NumberTitleIssue Date
3971315Macroporous microporous marking structure
A marking structure for various uses, such as in hand stamps or other printing members, or in ink pads, ink rolls or other inking members. The marking structure is characterized by at least two layers, including an outer layer and an underlying reservoir ...
07/27/1976
3971316Process for smoothing waterless lithographic masters
A method of removing irregularities on the surface of a waterless lithographic master comprising selectively heating an imaged adhesive silicone master, which is deformable at elevated temperature, at a temperature and for a time sufficient to smooth out ...
07/27/1976
3967042Fuser blanket
A composite laminate structure is provided which is suitable for use as a fuser blanket in copiers or reproducers which are based on heat fixing of images on receptor surfaces. The structure is comprised of a dimensionally stable, heat conductive substrat...
06/29/1976
3964389Printing plate by laser transfer
Material is transferred by a laser beam from a transparent carrier film to a lithographic surface, thereby producing a planographic printing plate and a film having clear areas corresponding to the image on the plate....
06/22/1976
3962526Tissueless pre-printed spirit duplicating masters
The spirit duplicating masters are pre-printed utilizing a non-bleed, non-smear ink composition. Typically the ink may contain cetyl alcohol, carnauba wax, a soft wax, fillers and a small amount of dye solubilizer and/or wetting agent. Such pre-printed ma...
06/08/1976
3961947Process for preparing waterless lithographic masters
A novel method of preparing a waterless lithographic master and a method of printing therefrom are provided. To prepare the printing master, a suitable ink accepting substrate such as aluminum, paper or plastic, is coated with a silicone gum curing cataly...
06/08/1976
3962009Decorative laminated structures and method of making same
A decorative laminated structure having on its surface a pattern composed of concaves and convexes which are formed by local heat shrinkages of a layer of a heat-shrinkable resin sheet employed. Such decorative laminated structure can be obtained by layin...
06/08/1976
3954463Method for electrostatic printing
A method for printing electrostatically including charging a photosensitive plate and exposing it to an optical pattern to form a latent image; placing the plate on a conveyor, developing the latent image and affixing the developed image to the plate to f...
05/04/1976
3951060Process for preparing waterless lithographic masters
A process for preparing a waterless lithographic printing master is provided. A suitable substrate which is preferably ink accepting is coated with a silicone which is curable at low or ambient temperature and which contains in addition to its own catalys...
04/20/1976
3951063Process for preparing reversible cure waterless lithographic masters
A process is provided for forming waterless lithography printing masters comprising depositing a particulate image pattern on a non-tacky rubbery uncured silicone polymer, converting the non-tacky polymer into a softened gummy state and curing said soften...
04/20/1976
3948655Electrostatographic process for preparing gravure printing member
A process for preparing a gravure printing member is provided in which a multi-celled member, such as a gravure ink roller, containing a liquid but hardenable material below the contact plane of the cells is contacted with an electrostatographic latent im...
04/06/1976
3949117Image intensification
A process for enhancing the optical density of images and the product resulting therefrom. The process comprises forming on a shrinkable substrate an image defined by a plurality of particles and having substantially less than an optimum optical density, ...
04/06/1976
3945318Printing plate blank and image sheet by laser transfer
This is a lithographic printing plate blank adapted to be processed by applying a beam of laser radiation through a radiation transparent sheet to transfer selected portions of a combustible coating material on the sheet onto a lithographic surface; the l...
03/23/1976
3942440Method of making a printing form
A printing form is made by heating a foil of synthetic thermoplastic material and embossing one surface thereof with a plurality of spaced depressions, with the resulting formation at the opposite surface of a corresponding plurality of protuberances....
03/09/1976
3932251Method for manufacturing an ink-containable stamp
A method for manufacturing an ink-containable stamp used for a printer of a computer or the like is disclosed, wherein a number of printing types and a drum or plate are moulded from a mixture comprising synthetic resin consisting of polyvinyl acetate res...
01/13/1976
3931762Method for preparing a plastic relief printing plate
When a thermoplastic resin sheet such as polyethylene, polypropylene, polystyrene, ABS or polyvinyl chloride resin sheet which contains 0 - 80 % by weight of an inorganic filler and has a foaming ratio (a) of 1 or 1 < a .ltoreq. 4 and which satisfies t...
01/13/1976
3931432Printing process
Process for gravure or flexographic printing of flexible substrates wherein the printing vehicle comprises a dispersion of film-forming polymer particles in an inert organic liquid, the dispersion being stabilised by a defined polymeric stabiliser and bei...
01/06/1976
3931030Etching composition for etching nickel screen rolls or plates
Delicate and high grade nickel screen rolls or plates for printing are prepared by using corrosion-resistant mother roll and a specified powderless etching composition comprising HNO.sub.3, H.sub.2 O.sub.2, surfactants and an organic solvent....
01/06/1976
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