US3412660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure control device for photographic cameras
Assignee: Agfa Gevaert AG
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Filing: 1966-03-04
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Granted: 1968-11-26
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wasielewski Erwin Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:27
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A CAMERA, MEANS DEFINING A DISPHRAGM OPENING; A SHUTTER COMPRISING AT LEAST ONE SECTOR MOVABLE BETWEEN A CLOSED POSITION AND AN OPEN POSITION IN WHICH SAID SECTOR RESPECTIVELY CONCEALS AND EXPOSES AT LEAST A PORTION OF SAID OPENING; AN IMPELLER MOVABLE FROM A COCKED POSITION TOWARD A POSITION OF REST AND ARRANGED TO THEREBY TRANSMIT TO SAID SECTOR AN IMPETUS IN A DIRECTION TO MOVE THE SECTOR FROM SAID CLOSED POSITION; AND AN EXPOSURE CONTROL DEVICE INCLUDING ELECTROMAGNETIC MEANS FOR REGULATING THE SPEED AND EXTENT OF MOVEMENT OF SAID SECTOR FROM CLOSED POSITION.
Claim 2
Dependent Claim
94 words
IN A CAMERA, MEANS DEFINING A DISPHRAGM OPENING; A SHUTTER COMPRISING AT LEAST ONE SECTOR MOVABLE BETWEEN A CLOSED POSITION AND AN OPEN POSITION IN WHICH SAID SECTOR RESPECTIVELY CONCEALS AND EXPOSES AT LEAST A PORTION OF SAID OPENING; AN IMPELLER MOVABLE FROM A COCKED POSITION TOWARD A POSITION OF REST AND ARRANGED TO THEREBY TRANSMIT TO SAID SECTOR AN IMPETUS IN A DIRECTION TO MOVE THE SECTOR FROM SAID CLOSED POSITION; AND AN EXPOSURE CONTROL DEVICE INCLUDING ELECTROMAGNETIC MEANS FOR REGULATING THE SPEED AND EXTENT OF MOVEMENT OF SAID SECTOR FROM CLOSED POSITION.
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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |