US3078775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera apparatus
Assignee: R.L. Polk & Co
•
Filing: 1957-12-30
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Granted: 1963-02-26
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Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Lee
- 👤 Lawrence M Patrick
- 👤 Alfred W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A CAMERA, THE COMBINATION COMPRISING A HOUSING, A FILM SUPPLY SPOOL AND A FILM TAKE-UP SPOOL IN SAID HOUSING, SAID HOUSING HAVING MEANS DEFINING AN APERTURE, MEANS FOR GUIDING FILM FROM SAID SUPPLY SPOOL TO SAID TAKE-UP SPOOL ACROSS SAID APERTURE, MEANS FOR CONTINUOUSLY TENDING TO ROTATE SAID TAKE-UP SPOOL TO KEEP THE FILM WOUND THEREON, MEANS FOR SELECTIVELY APPLYING A CLAMPING FORCE ON THE FILM ON SAID MEANS DEFINING THE APERTURE TO GRIP THE FILM AT SAID APERTURE AND HOLD IT IN FIXED POSITION OVER SAID APERTURE, MEANS BETWEEN SAID APERTURE AND ONE OF SAID SPOOLS FOR SELECTIVELY GRIPPING OPPOSED FACES OF A PORTION OF THE FILM AND MOVING SAID PORTION OF THE FILM BODILY IN A DIRECTION TOWARD SAID TAKEUP SPOOL AND MEANS SELECTIVELY OPERATING SAID FIRST AND SECOND GRIPPING MEANS SUCH THAT AT LEAST ONE OF SAID GRIPPING MEANS IS ALWAY IN ENGAGEMENT WITH SAID FILM.
Claim 2
Dependent Claim
150 words
IN A CAMERA, THE COMBINATION COMPRISING A HOUSING, A FILM SUPPLY SPOOL AND A FILM TAKE-UP SPOOL IN SAID HOUSING, SAID HOUSING HAVING MEANS DEFINING AN APERTURE, MEANS FOR GUIDING FILM FROM SAID SUPPLY SPOOL TO SAID TAKE-UP SPOOL ACROSS SAID APERTURE, MEANS FOR CONTINUOUSLY TENDING TO ROTATE SAID TAKE-UP SPOOL TO KEEP THE FILM WOUND THEREON, MEANS FOR SELECTIVELY APPLYING A CLAMPING FORCE ON THE FILM ON SAID MEANS DEFINING THE APERTURE TO GRIP THE FILM AT SAID APERTURE AND HOLD IT IN FIXED POSITION OVER SAID APERTURE, MEANS BETWEEN SAID APERTURE AND ONE OF SAID SPOOLS FOR SELECTIVELY GRIPPING OPPOSED FACES OF A PORTION OF THE FILM AND MOVING SAID PORTION OF THE FILM BODILY IN A DIRECTION TOWARD SAID TAKEUP SPOOL AND MEANS SELECTIVELY OPERATING SAID FIRST AND SECOND GRIPPING MEANS SUCH THAT AT LEAST ONE OF SAID GRIPPING MEANS IS ALWAY IN ENGAGEMENT WITH SAID FILM.
References Cited (Backward Citations)
US1309471A
Cited
US1959922A
Cited
US2232240A
Cited
US2642773A
Cited
US2536156A
Cited
US2630743A
Cited
US2741154A
Cited
US2772325A
Cited
US2834832A
Cited
US2795174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |