US3283684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus
Assignee: Polaroid Corp
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Filing: 1965-10-08
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Granted: 1966-11-08
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:01
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
PHOTOGRAPHIC APPARATUS FOR EXPOSING AND TREATING WITH A LIQUID A SUCCESSION OF UNCONNECTED PHOTOSENSITIVE IMAGE-RECORDING SHEETS COMPRISING, IN COMBINATION: A HOUSING FOR ENCLOSING THE COMPONENTS OF SAID APPARATUS; EXPOSURE MEANS MOUNTED ON SAID HOUSING FOR PHOTOEXPOSING SAID IMAGE-RECORDING SHEETS WITHIN SAID HOUSING; MEANS WITHIN SAID HOUSING FOR HOLDING A PLURALITY OF SAID IMAGE-RECORDING SHEETS IN A FIRST STACK WITH AN END SHEET OF SAID FIRST STACK LOCATED IN POSITION FOR EXPOSURE; MEANS WITHIN SAID HOUSING FOR HOLDING AN EQUAL NUMBER OF SAID SHEETS IN A SECOND STACK DISPOSED APART FROM SAID FIRST STACK WITH END PORTIONS OF SAID STACKS LOCATED ADJACENT ONE ANOTHER; ADVANCEMENT MEANS INCLUDING A FIRST MEMBER FOR FIRCTIONALLY ENGAGING SAID END IMAGE-RECORDING SHEET, A SECOND MEMBER FOR FRICTIONALLY ENGAGING AN END SECOND SHEET OF SAID SECOND STACK AND MEANS FOR MOVING SAID FIRST AND SECOND MEMBERS IN ENGAGEMENT WITH SAID ENDS SHEETS TO MOVE SAID END SHEETS EDGE FOREMOST SIMULTANEOUSLY AND AT SUBSTANTIALY THE SAME SPEED FROM SAID STACKS; A PAIR OF JUXTAPOSED PRESSURE MEMBERS FOR APPLYING COMPRESSIVE PRESSURE TO SAID SHEETS DURING MOVEMENT THEREOF; GUIDE MEANS FOR GUIDING SAID SHEETS DURING MOVEMENT THEREOF FROM SAID STACKS LONG CONVERGENT PATHS INTO SUPERPOSED RELATION AND IN SUPERPOSITION BETWEEN AND PRESSURE MEMBERS; AND MEANS ADJACENT SAID PRESSURE MEMBERS BETWEEN THE LATTER AND SAID STACKS FOR APPLYING A LIQUID TO THE FACING SURFACE OF AT LEAST ONE OF SAID SHEETS.
Claim 2
Dependent Claim
230 words
PHOTOGRAPHIC APPARATUS FOR EXPOSING AND TREATING WITH A LIQUID A SUCCESSION OF UNCONNECTED PHOTOSENSITIVE IMAGE-RECORDING SHEETS COMPRISING, IN COMBINATION: A HOUSING FOR ENCLOSING THE COMPONENTS OF SAID APPARATUS; EXPOSURE MEANS MOUNTED ON SAID HOUSING FOR PHOTOEXPOSING SAID IMAGE-RECORDING SHEETS WITHIN SAID HOUSING; MEANS WITHIN SAID HOUSING FOR HOLDING A PLURALITY OF SAID IMAGE-RECORDING SHEETS IN A FIRST STACK WITH AN END SHEET OF SAID FIRST STACK LOCATED IN POSITION FOR EXPOSURE; MEANS WITHIN SAID HOUSING FOR HOLDING AN EQUAL NUMBER OF SAID SHEETS IN A SECOND STACK DISPOSED APART FROM SAID FIRST STACK WITH END PORTIONS OF SAID STACKS LOCATED ADJACENT ONE ANOTHER; ADVANCEMENT MEANS INCLUDING A FIRST MEMBER FOR FIRCTIONALLY ENGAGING SAID END IMAGE-RECORDING SHEET, A SECOND MEMBER FOR FRICTIONALLY ENGAGING AN END SECOND SHEET OF SAID SECOND STACK AND MEANS FOR MOVING SAID FIRST AND SECOND MEMBERS IN ENGAGEMENT WITH SAID ENDS SHEETS TO MOVE SAID END SHEETS EDGE FOREMOST SIMULTANEOUSLY AND AT SUBSTANTIALY THE SAME SPEED FROM SAID STACKS; A PAIR OF JUXTAPOSED PRESSURE MEMBERS FOR APPLYING COMPRESSIVE PRESSURE TO SAID SHEETS DURING MOVEMENT THEREOF; GUIDE MEANS FOR GUIDING SAID SHEETS DURING MOVEMENT THEREOF FROM SAID STACKS LONG CONVERGENT PATHS INTO SUPERPOSED RELATION AND IN SUPERPOSITION BETWEEN AND PRESSURE MEMBERS; AND MEANS ADJACENT SAID PRESSURE MEMBERS BETWEEN THE LATTER AND SAID STACKS FOR APPLYING A LIQUID TO THE FACING SURFACE OF AT LEAST ONE OF SAID SHEETS.
References Cited (Backward Citations)
US2930301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |