Patent US3194138A successfully refreshed from Google Patents.
US3194138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus
Assignee: Polaroid Corp
•
Filing: 1962-12-04
•
Granted: 1965-07-13
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:40
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
IN PHOTOGRAPHIC APPARATUS FOR EXPOSING SUCCESSIVE AREAS OF A PHOTOSENSITIVE IMAGE-RECORDING SHEET, MEANS FOR TREATING SAID AREAS OF SAID IMAGE-RECORDING SHEET WITH A PROCESSING LIQUID COMPRISING, IN COMBINATION: A LIQUID APPLICATOR INCLUDING A MAMBER HAVING TWO SURFACES DISPOSED IN ADJACENT FACE-TO-FACE RELATION AND DEFINING A CAPILLARY INTERSPACE BETWEEN SAID SURFACES; SAID SURFACES AND SAID CAPILLARY INTERSPACE DEFINED THEREBY TERMINATING IN AN EDGE DEFINED BY EDGE PORTIONS OF SAID MEMBER; A RESERVOIR FOR SAID PROCESSING LIQUID CONSTRUCTED TO MAINTAIN THE LIQUID CONTENTS OF SAID RESERVOIR SUBSTANTIALLY AT AMBIENT PRESSURE; SAID MEMBER BEING POSITIONED WITH THE END OF SAID CAPILLARY INTERSPACE OPPOSITE SAID EDGE IMMERSED IN SAID LIQUID WITHIN SAID RESERVOIR; MEANS FOR SUPPORTING SAID MEMBER WITHIN SAID APPARATUS WITH SAID EDGE PORTIONS THEREOF DEFINING SAID EDGE OF SAID INTERSPACE IN CONTACT WITH SAID IMAGERECORDING SHEET AND MOVING SAID MEMBER AND SAID SHEET RELATIVE TO ONE ANOTHER TO APPLY SAID LIQUID TO SAID SHEET FROM SAID CAPILLARY INTERSPACE; THE LAST-NAMED MEANS INCLUDING MEANS FOR MOVING SAID APPLICATOR AND SAID RESERVOIR FROM A FIRST TO A SECOND POSITION TO APPLY SAID LIQUID TO SAID SHEET; AND MEANS FOR ENGAGING SAID EDGE PORTIONS OF SAID MEMBER AT SAID FIRST POSITION FOR CLOSING SAID CAPILLARY INTERSPACE AGAINST THE FLOW OF SAID LIQUID.
Claim 2
Dependent Claim
207 words
IN PHOTOGRAPHIC APPARATUS FOR EXPOSING SUCCESSIVE AREAS OF A PHOTOSENSITIVE IMAGE-RECORDING SHEET, MEANS FOR TREATING SAID AREAS OF SAID IMAGE-RECORDING SHEET WITH A PROCESSING LIQUID COMPRISING, IN COMBINATION: A LIQUID APPLICATOR INCLUDING A MAMBER HAVING TWO SURFACES DISPOSED IN ADJACENT FACE-TO-FACE RELATION AND DEFINING A CAPILLARY INTERSPACE BETWEEN SAID SURFACES; SAID SURFACES AND SAID CAPILLARY INTERSPACE DEFINED THEREBY TERMINATING IN AN EDGE DEFINED BY EDGE PORTIONS OF SAID MEMBER; A RESERVOIR FOR SAID PROCESSING LIQUID CONSTRUCTED TO MAINTAIN THE LIQUID CONTENTS OF SAID RESERVOIR SUBSTANTIALLY AT AMBIENT PRESSURE; SAID MEMBER BEING POSITIONED WITH THE END OF SAID CAPILLARY INTERSPACE OPPOSITE SAID EDGE IMMERSED IN SAID LIQUID WITHIN SAID RESERVOIR; MEANS FOR SUPPORTING SAID MEMBER WITHIN SAID APPARATUS WITH SAID EDGE PORTIONS THEREOF DEFINING SAID EDGE OF SAID INTERSPACE IN CONTACT WITH SAID IMAGERECORDING SHEET AND MOVING SAID MEMBER AND SAID SHEET RELATIVE TO ONE ANOTHER TO APPLY SAID LIQUID TO SAID SHEET FROM SAID CAPILLARY INTERSPACE; THE LAST-NAMED MEANS INCLUDING MEANS FOR MOVING SAID APPLICATOR AND SAID RESERVOIR FROM A FIRST TO A SECOND POSITION TO APPLY SAID LIQUID TO SAID SHEET; AND MEANS FOR ENGAGING SAID EDGE PORTIONS OF SAID MEMBER AT SAID FIRST POSITION FOR CLOSING SAID CAPILLARY INTERSPACE AGAINST THE FLOW OF SAID LIQUID.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |