...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 4294349 | Kit for repair of porcelain dental prostheses A kit containing the components essential for repairing, in situ, damaged or fractured porcelain dental prostheses. Such repair includes cleaning, shaping, and priming the damaged area, applying a bonding agent preferably containing two silanes and a wate... | 10/13/1981 |
| 4270904 | Method for repairing dental prosthesis and similar There is described a method for repairing dental prosthesis which comprises fastening the corresponding break surfaces of the prosthesis to one another by means of a non-toxic fast-setting adhesive having an affinity for the material the prosthesis is mad... | 06/02/1981 |
| 4239261 | Micro-marking label and apparatus The present invention relates to a micro-marking label to be applied to an article for identification. The label is formed from a thin microsized plate of generally transparent material which includes a marking indicia thereon. The indicia is divided into... | 12/16/1980 |
| 4232784 | Stand for instruments for medical use A stand for instruments of metal for use in the field of medicine, particularly odontology, comprising a body composed of a large number of sheets of a liquid impregnatable paper material. The sheets are arranged vertically close together so that the inst... | 11/11/1980 |
| 4211008 | Oral device A device adapted to be placed in the human mouth for treating among other things temporomandibular joint dysfunctions comprising an elongated flexible plastic body having occlusal portions at the extremities thereof, the occlusal portions being interconne... | 07/08/1980 |
| 4208795 | Method of providing a living person's body with information for forensic identification An identification plate of gold alloy is inserted in a small blind hole drilled into the crown of a tooth. The hole is then filled with a durable filler which hardens around the plate to embed it in a durable, heat resistant filling. The filling material ... | 06/24/1980 |
| 4206795 | Stored collapsible bag for extension about a tree for disposal of the tree A stored collapsible bag for extension about a Christmas tree or the like for disposal of the tree including a bag having a hole in the bottom thereof through which a tree trunk is extended. The bag is placed in a container having a centrally positioned c... | 06/10/1980 |
| 4204324 | Gum mask A gum mask and a method of preparing the same, said mask made from inert elastomers and being intended to cover the necks of teeth exposed by gum atrophy and bone decay through paradentosis.... | 05/27/1980 |
| 4187082 | Dental finishing strips A flexible plastic strip having oppositely disposed faces, one of said faces being smooth and the other defining a smooth middle portion and opposite end portions diagonally coated with an abrasive. The width of the finishing strip is made approximately t... | 02/05/1980 |
| 4162172 | Method of removing dental cement from surfaces Carboxylate and zinc oxyphosphate types of dental cement are removed from dental products by applying a solution containing an organic acid having a COOH radical to the dental product. A preferred organic acid is citric acid.... | 07/24/1979 |
| 4129456 | Method of removing dental cement Carboxylate cement is removed from dental products by use of a solution containing an organic acid having a COOH radical. A preferred organic acid is citric acid.... | 12/12/1978 |
| 4027391 | Positive identification method and structure The present invention relates to a method to assist in the identification of a living body which comprises selecting a carrier, transcribing information as to the identity of the body on the carrier, and fixing the carrier to a hard mineralized portion of... | 06/07/1977 |
| 3993044 | Method and device for determining the length of a root canal of a tooth A method and device for measuring the length of a root canal of a tooth in which a reference signal obtained by placing an electrode or terminal of an oscillator in the gingival tissue and a signal obtained by inserting an electrode or terminal of an osci... | 11/23/1976 |
| 3981398 | Aid in the management of clinical emergencies in medical and dental practices and other circumstances The apparatus for use especially in treatment of emergency medical conditions. The apparatus comprises a briefcase or the like containing a holder, preferably a tray-like receptacle with recesses containing a drug or instrument or other article in each re... | 09/21/1976 |
| 3943919 | Electrical tooth pulp tester having tiltable head An apparatus for connecting a testing electrode to a source of electrical energy having a housing for receiving a testing electrode and a member for connecting the testing electrode to a source of electrical energy. The invention is particularly character... | 03/16/1976 |