USRE27229E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion picture apparatus with automatic rewind
Assignee: —
•
Filing: 1969-08-19
•
Granted: 1971-11-09
•
Expires: 1989-08-19
Abstract
Abstract AN AUTOMATIC REWIND DEVICE IS PROVIDED IN A MOTION PICTURE APPARATUS WHICH INCLUDES A FILM-TENSION SENSING DEVICE. THE FILM IS FED ALONG A PATH FROM A SUPPLY REEL, TO WHICH THE END OF THE FILM IS ATTACHED, TO A TAKE-UP REEL. UPON REACHING THE END OF THE FILM AN INCREASE IN FILM TENSION CAUSES THE SENSING DEVICE, THROUGH A MECHANICAL LINKAGE, TO UNCOUPLE THE TAKE-UP REEL FROM A DRIVE SHAFT AND COUPLE THE SUPPLY REEL THERETO TO EFFECT REWIND. NEAR THE COMPLETION OF THE REWIND OPERATION A SENSOR ADJACENT THE FILM PATH SENSES THE PASSAGE OF A LEADER END OF THE FILM TO UNCOUPLE THE DRIVE SHAFT FROM THE SUPPLY REEL AND COUPLE IT TO THE TAKE-UP REEL.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |