US3081683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic shutter
Assignee: Eastman Kodak Co
•
Filing: 1960-03-17
•
Granted: 1963-03-19
•
Expires: 1980-03-17
Abstract
No abstract record available.
Inventors
- 👤 William H Horton
- 👤 Edward L Sturm
- 👤 Michatek Chester William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:34
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A PHOTOGRAPHIC SHUTTER THE COMBINATION WITH A CASING PROVIDED WITH AN EXPOSURE APERTURE; OF A SINGLE BLADE PROVIDED WITH AN EXPOSURE SLOT AND ADAPTED TO SERVE BOTH AS A COVER BLIND AND AS A SHUTTER; MEANS FOR MOUNTING SAID BLADE IN SAID CASING TO MOVE OVER A FIRST PATH FROM A REST POSITION TO A COCKED POSITION IN WHICH IT COVERS SAID EXPOSURE APERTURE AS WELL AS DURING MOVEMENT THERETO, THEN OVER A SECOND PATH FROM SAID COCKED POSITION TO AN INTERMEDIATE POSITION DURING WHICH MOVEMENT THE EXPOSURE SLOT IN THE BLADE MOVES COMPLETELY ACROSS SAID EXPOSURE APERTURE TO UNCOVER AND RECOVER IT TO MAKE AN EXPOSURE, AND FINALLY OVER A THIRD PATH BACK TO SAID REST POSITION FROM SAID INTERMEDIATE POSITION WHILE COVERING SAID EXPOSURE APERTURE; A DRIVE SPRING FOR MOVING SAID BLADE FROM THE COCKED POSITION TO MAKE AN EXPOSURE; MEANS FOR MOVING SAID BLADE FROM SAID REST POSITION TO SAID COCKED POSITION AND INCLUDING A RETURN SPRING FOR MOVING SAID BLADE FROM SAID INTERMEDIATE POSITION TO SAID REST POSITION WHICH IS TENSIONED DURING THE COCKING OF SAID SHUTTER.
Claim 2
Dependent Claim
182 words
IN A PHOTOGRAPHIC SHUTTER THE COMBINATION WITH A CASING PROVIDED WITH AN EXPOSURE APERTURE; OF A SINGLE BLADE PROVIDED WITH AN EXPOSURE SLOT AND ADAPTED TO SERVE BOTH AS A COVER BLIND AND AS A SHUTTER; MEANS FOR MOUNTING SAID BLADE IN SAID CASING TO MOVE OVER A FIRST PATH FROM A REST POSITION TO A COCKED POSITION IN WHICH IT COVERS SAID EXPOSURE APERTURE AS WELL AS DURING MOVEMENT THERETO, THEN OVER A SECOND PATH FROM SAID COCKED POSITION TO AN INTERMEDIATE POSITION DURING WHICH MOVEMENT THE EXPOSURE SLOT IN THE BLADE MOVES COMPLETELY ACROSS SAID EXPOSURE APERTURE TO UNCOVER AND RECOVER IT TO MAKE AN EXPOSURE, AND FINALLY OVER A THIRD PATH BACK TO SAID REST POSITION FROM SAID INTERMEDIATE POSITION WHILE COVERING SAID EXPOSURE APERTURE; A DRIVE SPRING FOR MOVING SAID BLADE FROM THE COCKED POSITION TO MAKE AN EXPOSURE; MEANS FOR MOVING SAID BLADE FROM SAID REST POSITION TO SAID COCKED POSITION AND INCLUDING A RETURN SPRING FOR MOVING SAID BLADE FROM SAID INTERMEDIATE POSITION TO SAID REST POSITION WHICH IS TENSIONED DURING THE COCKING OF SAID SHUTTER.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |