Patent US3337146A successfully refreshed from Google Patents.
US3337146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film threading mechanism
Assignee: Yashica Co Ltd
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Filing: 1963-10-02
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Granted: 1967-08-22
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Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 Miyauchi Hideo
- 👤 Kamijo Satoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:39
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN AUTOMATIC FILM THREADING MECHANISM COMPRISING A FEED SPOOL AND A TAKE-UP SPOOL, MAIN DRIVE MEANS FOR ROTATING SAID TAKE-UP SPOOL, A FIRST FILM GUIDE MEANS DISPOSED ADJACENT SAID FEED SPOOL AND MOVABLE BETWEEN AN ADVANCED FILM GUIDE POSITION AND A RETRACTED POSITION, A SECOND FILM GUIDE MEANS DISPOSED ADJACENT SAID TAKE-UP SPOOL AND MOVABLE BETWEEN AND ADVANCED FILM GUIDE POSITION AND RETRACTED POSITION, AUXILIARY MEANS FOR DRIVING THE FILM IN SAID FEED SPOOL AND MOVABLE BETWEEN AN ADVANCE FILM DRIVE CONDITION AND A DORMANT CONDITION AND INCLUDING MEANS FOR COUPLING SAID AUXILIARY DRIVE MEANS IN SAID MAIN DRIVE MEANS, AND SELECTIVELY ACTUATABLE MEANS FOR EFFECTING THE UNCOUPLING BETWEEN SAID MAIN DRIVE AND SAID AUXILIARY DRIVE MEANS, AND SELECTIVELY ACTUATABLE MEANS MOVABLE BETWEEN AN ADVANCED AND A RETRACTED POSITION FOR ADVANCING SAID FIRST GUIDE MEANS TO ITS FILM GUIDE POSITION AND SAID AUXILIARY MEANS TO ITS DRIVE CONDITION.
Claim 2
Dependent Claim
148 words
AN AUTOMATIC FILM THREADING MECHANISM COMPRISING A FEED SPOOL AND A TAKE-UP SPOOL, MAIN DRIVE MEANS FOR ROTATING SAID TAKE-UP SPOOL, A FIRST FILM GUIDE MEANS DISPOSED ADJACENT SAID FEED SPOOL AND MOVABLE BETWEEN AN ADVANCED FILM GUIDE POSITION AND A RETRACTED POSITION, A SECOND FILM GUIDE MEANS DISPOSED ADJACENT SAID TAKE-UP SPOOL AND MOVABLE BETWEEN AND ADVANCED FILM GUIDE POSITION AND RETRACTED POSITION, AUXILIARY MEANS FOR DRIVING THE FILM IN SAID FEED SPOOL AND MOVABLE BETWEEN AN ADVANCE FILM DRIVE CONDITION AND A DORMANT CONDITION AND INCLUDING MEANS FOR COUPLING SAID AUXILIARY DRIVE MEANS IN SAID MAIN DRIVE MEANS, AND SELECTIVELY ACTUATABLE MEANS FOR EFFECTING THE UNCOUPLING BETWEEN SAID MAIN DRIVE AND SAID AUXILIARY DRIVE MEANS, AND SELECTIVELY ACTUATABLE MEANS MOVABLE BETWEEN AN ADVANCED AND A RETRACTED POSITION FOR ADVANCING SAID FIRST GUIDE MEANS TO ITS FILM GUIDE POSITION AND SAID AUXILIARY MEANS TO ITS DRIVE CONDITION.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |