Patent US3002779A successfully refreshed from Google Patents.
US3614918A
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Photographic cameras
Assignee: Pentacon GmbH Foto und Feinwerktechnik
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Filing: 1968-12-05
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Granted: 1971-10-26
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Expires: 1988-12-05
Abstract
Abstract THE CAMERA IN COMBINATION WITH A FLASH LAMP APPARATUS IS CONSTRUCTED WITH THE LIGHT PATH THROUGH THE CAMERA. A CHANGE OVER SWITCH IS PROVIDED IN THE CAMERA HOUSING WHICH CONNECTS ALTERNATELY A QUANTITATIVE LIGHT METER AND A PHOTOMETER TO THE PHOTOELECTRIC CELL ACCORDING TO CHOICE BY MEANS OF A CHANGEOVER SWITCH.
Inventors
- 👤 Walter Hennig
- 👤 Heinz Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:47
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |