Patent US3084883A successfully refreshed from Google Patents.
US3084883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film loader for rotating drum camera
Assignee: —
•
Filing: —
•
Granted: 1963-04-09
•
Expires: 1980-04-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:45
CPC Classifications
G; G03; G03B; G03B39/00; G03B39/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A FILM LOADER OF THE KIND DESCRIBED, A GENERALLY CYLINDRICAL FILM CASSETTE WITH A LIGHT TIGHT CLOSURE, A FILM SPOOL ROTATABLY SUPPORTED IN THE CASSETTE, GUIDE MEMBERS WITH CIRCULAR OPENINGS CONCENTRIC WITH THE SPOOL AND WITH SLOTS COMMUNICATING BETWEEN SAID OPENINGS AND THE EXTERIOR OF THE CASSETTE WHEN THE CLOSURE IS OPEN WHEREBY A COIL OF FILM IN THE CASSETTE WILL BE CONFINED BY THE OPENINGS IN SAID GUIDE MEMBERS, SAID SPOOL HAVING END FLANGES UNDERCUT AT AN ANGLE, AND RESILIENT MEANS URGING SAID FLANGES TOWARD EACH OTHER WHEREBY ONLY THE OUTER LAYER OF THE COIL OF FILM WILL BE ENGAGED BETWEEN SAID FLANGES.
Claim 2
Dependent Claim
105 words
IN A FILM LOADER OF THE KIND DESCRIBED, A GENERALLY CYLINDRICAL FILM CASSETTE WITH A LIGHT TIGHT CLOSURE, A FILM SPOOL ROTATABLY SUPPORTED IN THE CASSETTE, GUIDE MEMBERS WITH CIRCULAR OPENINGS CONCENTRIC WITH THE SPOOL AND WITH SLOTS COMMUNICATING BETWEEN SAID OPENINGS AND THE EXTERIOR OF THE CASSETTE WHEN THE CLOSURE IS OPEN WHEREBY A COIL OF FILM IN THE CASSETTE WILL BE CONFINED BY THE OPENINGS IN SAID GUIDE MEMBERS, SAID SPOOL HAVING END FLANGES UNDERCUT AT AN ANGLE, AND RESILIENT MEANS URGING SAID FLANGES TOWARD EACH OTHER WHEREBY ONLY THE OUTER LAYER OF THE COIL OF FILM WILL BE ENGAGED BETWEEN SAID FLANGES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |