US3250200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic shutter
Assignee: Compur Werk GmbH and Co
•
Filing: 1963-11-13
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Granted: 1966-05-10
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Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Singer Franz
- 👤 Hartl Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PHOTOGRAPHIC SHUTTER FOR USE WITH A CAMERA OF THE TYPE HAVING OPERATING MECHANISM FOR OPENING SHUTTER BLADES FOR VIEWING PURPOSES BETWEEN SUCCESSIVE EXPOSURES, SAID SHUTTER INCLUDING A BLADE RING ROTATABLE IN ONE DIRECTION TO OPEN SHUTTER BLADES AND ROTATABLE IN A REVERSE DIRECTION TO CLOSE THE SHUTTER BLADES, A MASTER MEMBER MOVABLE THROUGH A RUNNING DOWN MOVEMENT FROM A TENSIONED POSITION TO A REST POSITION AND EFFECTIVE DURING SUCH MOVEMENT FIRST TO TURN SAID BLADE RING IN AN OPENING DIRECTION AND THEN TO TURN SAID BLADE RING IN A CLOSING DIRECTION, RETARDING GEAR TRAIN MEANS FOR DELAYING THE RUNNING DOWN MOVEMENT OF SAID MASTER MEMBER, SAID RETARDIONG GEAR TRAINS MEANS INCLUDING AN ESCAPEMENT WHEEL AND A VIBRATING ANCHOR MEMBER PIVOTALLY MOUNTED ON AN ADJUSTING LEVER AND SHIFTABLE BY MOVEMENT BY SAID ADJUSTING LEVER INTO DEEPER OR SHALLOWER ENGAGEMENT WITH SAID ESCAPEMENT WHEEL, SPRING MEANS TENDING TO MOVE SAID ADJUSTING LEVER TO A POSITION OF MAXIMUM ENGAGEMENT OF SAID ANCHOR WITH SAID ESCAPEMENT WHEEL, CAM
Claim 2
Dependent Claim
165 words
A PHOTOGRAPHIC SHUTTER FOR USE WITH A CAMERA OF THE TYPE HAVING OPERATING MECHANISM FOR OPENING SHUTTER BLADES FOR VIEWING PURPOSES BETWEEN SUCCESSIVE EXPOSURES, SAID SHUTTER INCLUDING A BLADE RING ROTATABLE IN ONE DIRECTION TO OPEN SHUTTER BLADES AND ROTATABLE IN A REVERSE DIRECTION TO CLOSE THE SHUTTER BLADES, A MASTER MEMBER MOVABLE THROUGH A RUNNING DOWN MOVEMENT FROM A TENSIONED POSITION TO A REST POSITION AND EFFECTIVE DURING SUCH MOVEMENT FIRST TO TURN SAID BLADE RING IN AN OPENING DIRECTION AND THEN TO TURN SAID BLADE RING IN A CLOSING DIRECTION, RETARDING GEAR TRAIN MEANS FOR DELAYING THE RUNNING DOWN MOVEMENT OF SAID MASTER MEMBER, SAID RETARDIONG GEAR TRAINS MEANS INCLUDING AN ESCAPEMENT WHEEL AND A VIBRATING ANCHOR MEMBER PIVOTALLY MOUNTED ON AN ADJUSTING LEVER AND SHIFTABLE BY MOVEMENT BY SAID ADJUSTING LEVER INTO DEEPER OR SHALLOWER ENGAGEMENT WITH SAID ESCAPEMENT WHEEL, SPRING MEANS TENDING TO MOVE SAID ADJUSTING LEVER TO A POSITION OF MAXIMUM ENGAGEMENT OF SAID ANCHOR WITH SAID ESCAPEMENT WHEEL, CAM
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |