Patent US3271571A successfully refreshed from Google Patents.
US3271571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray film cassette with film feeding means
Assignee: GAF Chemicals Corp
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Filing: 1963-04-08
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Granted: 1966-09-06
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Stanley J Klem
- 👤 Heinz F Nitka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:45
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/003; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CASSETTE FOR PHOTOGRAPHIC FILM, COMPRISING A SHALLOW TRAY STRUCTURE ACCOMMODATING A SHEET OF FILM, A COVER HINGED THERETO WHICH WHEN CLOSED, EXERTS PRESSURE ON SAID FILM AND FORMS A LIGHT-TIGHT ENCLOSURE, LATCHING MEANS FORM LOCKING SAID COVER UPON CLOSURE AND MEANS, SUPPORTED BY SAID CASSETTE, FRICTIONALLY ENGAGING SAID FILM TO ADVANCE THE SAME PARTIALLY OUT OF SAID CASSETTE UPON RELEASE OF SAID LATCHING MEANS.
Claim 2
Dependent Claim
65 words
A CASSETTE FOR PHOTOGRAPHIC FILM, COMPRISING A SHALLOW TRAY STRUCTURE ACCOMMODATING A SHEET OF FILM, A COVER HINGED THERETO WHICH WHEN CLOSED, EXERTS PRESSURE ON SAID FILM AND FORMS A LIGHT-TIGHT ENCLOSURE, LATCHING MEANS FORM LOCKING SAID COVER UPON CLOSURE AND MEANS, SUPPORTED BY SAID CASSETTE, FRICTIONALLY ENGAGING SAID FILM TO ADVANCE THE SAME PARTIALLY OUT OF SAID CASSETTE UPON RELEASE OF SAID LATCHING 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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |