Patent US3307467A successfully refreshed from Google Patents.
US3307467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus
Assignee: Polaroid Corp
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Filing: 1964-06-03
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Granted: 1967-03-07
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Gold Nicholas
- 👤 Arthur J Sable
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:10
CPC Classifications
G; G03; G03D; G03D9/00; G03D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN APPARATUS FOR TREATING PHOTOGRAPHIC SHEET MATERIALS WITH A LIQUID, A DEVICE FOR DISTRIBUTING SAID LIQUID BETWEEN A PAIR OF SUPERPOSED SHEETS COMPRISING, IN COMBINATION: A FIRST MEMBER HAVING A SHEET ENGAGEMENT SURFACE INCLUDING A SECTION AT LEAST EQUAL IN LENGTH TO THE WIDTH OF SAID SHEETS AND LYING IN A SUBSTANTIALLY STRAIGHT LINE; A SECOND MEMBER HAVING A SURFACE AT LEAST EQUAL IN LENGTH TO SAID SECTION OF SAID FIRST MEMBER AND BEING MOVABLE TOWARD AND AWAY FROM SAID FIRST MEMBER; RESILIENT MEANS FOR URGING SAID SECOND MEMBER TOWARD SAID FIRST MEMBER; SAID SURFACES OF SAID MEMBERS DEFINING A PASSAGE BETWEEN SAID MEMBERS CONVERGING TO A NARROW GAP THROUGH WHICH SAID SHEETS ARE MOVED IN SUPERPOSITION SUBSTANTIALLY IN A PLANE FOR DISTRIBUTING SAID LIQUID THEREBETWEEN; AND MEANS FOR PREVENTING ESCAPE OF SAID LIQUID FROM BETWEEN
Claim 2
Dependent Claim
136 words
IN APPARATUS FOR TREATING PHOTOGRAPHIC SHEET MATERIALS WITH A LIQUID, A DEVICE FOR DISTRIBUTING SAID LIQUID BETWEEN A PAIR OF SUPERPOSED SHEETS COMPRISING, IN COMBINATION: A FIRST MEMBER HAVING A SHEET ENGAGEMENT SURFACE INCLUDING A SECTION AT LEAST EQUAL IN LENGTH TO THE WIDTH OF SAID SHEETS AND LYING IN A SUBSTANTIALLY STRAIGHT LINE; A SECOND MEMBER HAVING A SURFACE AT LEAST EQUAL IN LENGTH TO SAID SECTION OF SAID FIRST MEMBER AND BEING MOVABLE TOWARD AND AWAY FROM SAID FIRST MEMBER; RESILIENT MEANS FOR URGING SAID SECOND MEMBER TOWARD SAID FIRST MEMBER; SAID SURFACES OF SAID MEMBERS DEFINING A PASSAGE BETWEEN SAID MEMBERS CONVERGING TO A NARROW GAP THROUGH WHICH SAID SHEETS ARE MOVED IN SUPERPOSITION SUBSTANTIALLY IN A PLANE FOR DISTRIBUTING SAID LIQUID THEREBETWEEN; AND MEANS FOR PREVENTING ESCAPE OF SAID LIQUID FROM BETWEEN
References Cited (Backward Citations)
US3113496A
Cited
US3135187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |