US3233839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film threader apparatus
Assignee: Eugen Bauer GmbH
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Filing: 1963-12-06
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Granted: 1966-02-08
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Reinsch Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:02
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
FOR USE IN A MOTION PICTURE APPARATUS, IN COMBINATION, A PAIR OF SPACED ELONGATED WALLS DEFINING BETWEEN THEMSELVES A PASSAGE FOR A FILM STRIP; MEANS CONNECTING SAID WALLS TO EACH OTHER TO MAINTAIN THEM IN SPACED RELATIONSHIP; MEANS CONNECTED TO SAID WALLS FOR CONNECTING THE LATTER PIVOTALLY TO A SUPPORT OF A PHOTOGRAPHIC APPARATUS; AND MEANS FORMING A FREE END PORTION OF ONE OF SAID WALLS AND ADAPTED TO ENGAGE FIRST THE CORE OF A TAKE-UP SPOOL AND THEN FILM WOUND THEREON, SAID LAST-MENTIONED MEANS INCLUDING AT THE FREE END OF SAID ONE WALL A PAIR OF PROJECTIONS ONE OF WHICH IS WIDER AND LONGER THAN THE OTHER FOR ENGAGING A FILM STRIP AND EXTENDING ACROSS AND BEYOND THE PERFORATIONS THEREOF WHILE MAINTAINING THE OTHER PROJECTION OUT OF ENGAGEMENT WITH THE FILM STRIP SO THAT THE FILM CAN FREELY SLIDE WITH RESPECT TO SAID ONE PROJECTION.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |