Patent US3294538A successfully refreshed from Google Patents.
US3294538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid trapping means for a film pack
Assignee: POLAROLD Corp
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Filing: 1963-06-14
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Granted: 1966-12-27
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Rogers B Downey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:25
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A PHOTOGRAPHIC FILM UNIT WHICH IS ADAPTED TO BE PROCESSED BY PASSING SAID UNIT BETWEEN A PAIR OF JUXTAPOSED PRESSURE-APPLYING MEMBERS WHICH COMPRISES, IN COMBINATION, A FIRST PHOTOSENSITIVE SHEET ELEMENT, A SECOND NONPHOTOSENSITIVE SHEET ELEMENT AND A RUPTURABLE CONTAINER RETAINING A FLUID PROCESSING COMPOSITION, SAID SHEET ELEMENTS ARRANGED FOR BIASING INTO SUPERPOSED RELATIONSHIP WITH SAID CONTAINER POSITIONED INTERMEDIATE SAID SHEET ELEMENTS TRANSVERSE A FIRST LEADING EDGE THEREOF, TO EFFECT UNIDIRECTIONAL DISCHARGE OF SAID CONTAINER''S CONTENTS BETWEEN AND IN CONTACT WITH OPPOSED SURFACES OF SAID ELEMENTS UPON APPLICATION OF COMPRESSIVE FORCE TO SAID CONTAINER, LIQUID CONFINING MEANS ATTACHED TO THE TRAILING EDGE OF SAID SECOND SHEET ELEMENT, SAID LIQUID CONFINING MEANS COMPRISING AN ELONGATED SHEET INCLUDING A FIRST SECTION HAVING A
Claim 2
Dependent Claim
120 words
A PHOTOGRAPHIC FILM UNIT WHICH IS ADAPTED TO BE PROCESSED BY PASSING SAID UNIT BETWEEN A PAIR OF JUXTAPOSED PRESSURE-APPLYING MEMBERS WHICH COMPRISES, IN COMBINATION, A FIRST PHOTOSENSITIVE SHEET ELEMENT, A SECOND NONPHOTOSENSITIVE SHEET ELEMENT AND A RUPTURABLE CONTAINER RETAINING A FLUID PROCESSING COMPOSITION, SAID SHEET ELEMENTS ARRANGED FOR BIASING INTO SUPERPOSED RELATIONSHIP WITH SAID CONTAINER POSITIONED INTERMEDIATE SAID SHEET ELEMENTS TRANSVERSE A FIRST LEADING EDGE THEREOF, TO EFFECT UNIDIRECTIONAL DISCHARGE OF SAID CONTAINER''S CONTENTS BETWEEN AND IN CONTACT WITH OPPOSED SURFACES OF SAID ELEMENTS UPON APPLICATION OF COMPRESSIVE FORCE TO SAID CONTAINER, LIQUID CONFINING MEANS ATTACHED TO THE TRAILING EDGE OF SAID SECOND SHEET ELEMENT, SAID LIQUID CONFINING MEANS COMPRISING AN ELONGATED SHEET INCLUDING A FIRST SECTION HAVING A
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |