Celebrity Inventors
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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US Patent 5041933 - Magnetic head suspension apparatus for use with a photographic film
US Patent Issued on August 20, 1991
Estimated Patent Expiration Date:
August 9, 2009Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
August 9, 2009Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA magnetic head suspension system for use in a photofinishing operation comprises a fixed support and a pair of magentic head suspension assemblies each rotatably mounted on the support. The magnetic head suspension assemblies are biased towards each other to engage opposite edges of the film respectively. Each magnetic head suspension assembly is rotatable relative to the fixed support to compensate for film width variations and film edge irregularities to insure constant orientation of the magnetic heads with respect to the film edges. | InventorsApplicationNo. 391205 filed on 08/09/1989US Classes:360/240, HEAD MOUNTING352/92, WITH FILM CARRIED CONTROL SIGNALS360/3Motion picture filmField of Search352/92, WITH FILM CARRIED CONTROL SIGNALS352/236, With film-carried indicia352/37, Picture and sound recorder carries355/40, Identifying, composing, or selecting360/3Motion picture filmExaminersPrimary: Heinz, A. J.Assistant: Evans, Jefferson Attorney, Agent or FirmUS Patent References2618710, 2678357, 3031531, 3352975, 3452161, 3981570, Motion picture projector device as audio-visual aid and audio-visual system using the sameIssued on: 09/21/1976 Inventor: Ashida , et al.4208108, Sound motion picture projector Issued on: 06/17/1980 Inventor: Amikura , et al.4270853, Sound-recording instant-printing film and camera therefor Issued on: 06/02/1981 Inventor: Hatada , et al.4270854, Photographic instant camera with magnetic recording capability Issued on: 06/02/1981 Inventor: Stemme , et al.4500183, Film cassette and a photographing device using the same Issued on: 02/19/1985 Inventor: Tanikawa4613911, Photographic film with magnetic recording track and method of recording on the track and reproduction from the same Issued on: 09/23/1986 Inventor: Ohta4689696, Hybrid image recording and reproduction system Issued on: 08/25/1987 Inventor: Plummer4736215, Photographic method and apparatus employing automatic camera adjustment Issued on: 04/05/1988 Inventor: Hudspeth , et al.4860037Film cassette with magnetic film leader Issued on: 08/22/1989 Inventor: Harvey International ClassesG11B 005/48G11B 005/633 G03B 031/00 G03B 021/50 |
