Patent US3326482A successfully refreshed from Google Patents.
US3326482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic rewind motion picture projector
Assignee: Bell and Howell Co
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Filing: 1964-11-09
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Granted: 1967-06-20
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Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Michaels Bruno
- 👤 Arthur E Nupnau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:21
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A FILM FEEDING MECHANISM, FILM TRACK FORMING MEANS INCLUDING OUTER FILM GUIDING PARTS AND INNER FILM GUIDING PARTS TOGETHER FORMING A FILM TRACK THROUGH WHICH A FILM IS ADVANCED; A LENS STRUCTURE ON SAID INNER PARTS THROUGH WHICH IMAGES ON THE FILM ARE ADAPTED TO BE PROJECTED; MEANS PIVOTALLY MOUNTING SAID INNER PARTS THROUGH WHICH MENT TO AN OPEN POSITION TO COMPLETELY RELEASE THE FILM FROM THE FILM TRACK FOR REWINDING; SPRING MEANS BIASING SAID INNER PARTS TO AN OPEN POSITION; OTHER MEANS LATCHING SAID INNER PARTS IN OPERATIVE ASSOCIATION WITH SAID OUTER PARTS; AND MEANS ACTUATED BY THE FILM AT THE COMPLETION OF A PROJECTION OPERATION FOR POSITIVELY RELEASING SAID LATCHING MEANS AND ACCOMMODATING MOVEMENT OF THE INNER PARTS TO AN OPEN POSITION BY THE BIAS OF SAID SPRING MEANS.
Claim 2
Dependent Claim
132 words
IN A FILM FEEDING MECHANISM, FILM TRACK FORMING MEANS INCLUDING OUTER FILM GUIDING PARTS AND INNER FILM GUIDING PARTS TOGETHER FORMING A FILM TRACK THROUGH WHICH A FILM IS ADVANCED; A LENS STRUCTURE ON SAID INNER PARTS THROUGH WHICH IMAGES ON THE FILM ARE ADAPTED TO BE PROJECTED; MEANS PIVOTALLY MOUNTING SAID INNER PARTS THROUGH WHICH MENT TO AN OPEN POSITION TO COMPLETELY RELEASE THE FILM FROM THE FILM TRACK FOR REWINDING; SPRING MEANS BIASING SAID INNER PARTS TO AN OPEN POSITION; OTHER MEANS LATCHING SAID INNER PARTS IN OPERATIVE ASSOCIATION WITH SAID OUTER PARTS; AND MEANS ACTUATED BY THE FILM AT THE COMPLETION OF A PROJECTION OPERATION FOR POSITIVELY RELEASING SAID LATCHING MEANS AND ACCOMMODATING MOVEMENT OF THE INNER PARTS TO AN OPEN POSITION BY THE BIAS OF SAID SPRING MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |