US3402007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film feeding mechanism
Assignee: Eastman Kodak Co
•
Filing: 1965-07-08
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Granted: 1968-09-17
•
Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Gerlach Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:45
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/22; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FILM PROJECTOR COMPRISING IN COMBINATION: (1) A SOURCE OF LIGHT; (2) MEANS FOR INTERMITTENTLY MOVING A MOTION PICTURE FILM PAST SAID SOURCE OF LIGHT; (3) AND SHUTTER MEANS FOR INTERRUPTING THE LIGHT BEAM BETWEEN THE SOURCE OF LIGHT AND THE FILM AT A FIXED FREQUENCY; (4) SAID MEANS FOR INTERMITTENTLY MOVING THE FILM COMPRISING (A) A FILM CATCHER, (B) MEANS MOUNTING SAID CATCHER FOR BACK-ANDFORTH RECIPROCATION IN A FILM ADVANCING DIRECTION AND IN-AND-OUT MOVEMENT IN A FILM ENGAGING AND DISENGAGING DIRECTION, (C) DRIVE MEANS FOR RECIPROCATING SAID CATCHER IN SAID BACK-AND-FORTH DIRECTION AT SAID FIXED FREQUENCY, (D) IN-AND-OUT CAM MEANS,
Claim 2
Dependent Claim
101 words
A FILM PROJECTOR COMPRISING IN COMBINATION: (1) A SOURCE OF LIGHT; (2) MEANS FOR INTERMITTENTLY MOVING A MOTION PICTURE FILM PAST SAID SOURCE OF LIGHT; (3) AND SHUTTER MEANS FOR INTERRUPTING THE LIGHT BEAM BETWEEN THE SOURCE OF LIGHT AND THE FILM AT A FIXED FREQUENCY; (4) SAID MEANS FOR INTERMITTENTLY MOVING THE FILM COMPRISING (A) A FILM CATCHER, (B) MEANS MOUNTING SAID CATCHER FOR BACK-ANDFORTH RECIPROCATION IN A FILM ADVANCING DIRECTION AND IN-AND-OUT MOVEMENT IN A FILM ENGAGING AND DISENGAGING DIRECTION, (C) DRIVE MEANS FOR RECIPROCATING SAID CATCHER IN SAID BACK-AND-FORTH DIRECTION AT SAID FIXED FREQUENCY, (D) IN-AND-OUT CAM MEANS,
References Cited (Backward Citations)
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GB319644A
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GB449137A
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Cited
FR854768A
Cited
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Cited
GB546044A
Cited
US2390389A
Cited
US2601181A
Cited
US2649836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |