US3072028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic flashlight and diaphragm control device for photographic cameras
Assignee: Balda Werke Photographische Gerate und Kunststof GmbH and Co KG
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Filing: 1960-09-06
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Granted: 1963-01-08
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Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Lange Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A PHOTOGRAPHIC CAMERA HAVING A FRONT LENS, A ROTATABLE FRONT LENS HOLDER ARRANGED FOR RANGE SETTING, A SHUTTER AND A RANGE FINDER, THE COMBINATION WITH AN AUTOMATIC ADJUSTING APPARATUS FOR FLASHLIGHT EXPOSURES AND A DIAPHRAGM DEVICE HAVING AN AUTOMATIC APERTURE ADJUSTMENT, OF AN EXPOSURE METER HAVING A PHOTO-ELECTRIC CELL, SAID EXPOSURE METER HAVING A CASING, AN INDICATOR AND A SCALE FOR INDICATING THE SETTING OF SAID APERTURE FOR DAYLIGHT EXPOSURES AS WELL AS FOR SAID FLASHLIGHT EXPOSURES, SAID CASING HAVING A ZERO POSITION, A READJUSTMENT INDICATOR, MEANS DRIVING SAID READJUSTMENT INDICATOR FROM SAID SHUTTER OF SAID CAMERA, OPERATIVE MEANS CONNECTING SAID INDICATOR OF SAID EXPOSURE METER WITH SAID READJUSTMENT INDICATOR, THE FORMER BEING ARRESTED BY THE OPERATION OF SAID SHUTTER AND BEING SCANNED BY THE LATTER, MEANS TRANSMITTING THE POSITION OF SAID READJUSTMENT INDICATOR TO SAID DIAPHRAGM, A TIME-AND-FILM SENSITIVITY GEAR MECH-
Claim 2
Dependent Claim
143 words
IN A PHOTOGRAPHIC CAMERA HAVING A FRONT LENS, A ROTATABLE FRONT LENS HOLDER ARRANGED FOR RANGE SETTING, A SHUTTER AND A RANGE FINDER, THE COMBINATION WITH AN AUTOMATIC ADJUSTING APPARATUS FOR FLASHLIGHT EXPOSURES AND A DIAPHRAGM DEVICE HAVING AN AUTOMATIC APERTURE ADJUSTMENT, OF AN EXPOSURE METER HAVING A PHOTO-ELECTRIC CELL, SAID EXPOSURE METER HAVING A CASING, AN INDICATOR AND A SCALE FOR INDICATING THE SETTING OF SAID APERTURE FOR DAYLIGHT EXPOSURES AS WELL AS FOR SAID FLASHLIGHT EXPOSURES, SAID CASING HAVING A ZERO POSITION, A READJUSTMENT INDICATOR, MEANS DRIVING SAID READJUSTMENT INDICATOR FROM SAID SHUTTER OF SAID CAMERA, OPERATIVE MEANS CONNECTING SAID INDICATOR OF SAID EXPOSURE METER WITH SAID READJUSTMENT INDICATOR, THE FORMER BEING ARRESTED BY THE OPERATION OF SAID SHUTTER AND BEING SCANNED BY THE LATTER, MEANS TRANSMITTING THE POSITION OF SAID READJUSTMENT INDICATOR TO SAID DIAPHRAGM, A TIME-AND-FILM SENSITIVITY GEAR MECH-
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |