Patent US3179028A successfully refreshed from Google Patents.
US3179028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for focussing of photographic objectives
Assignee: Carl Zeiss AG
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Filing: 1963-02-11
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Granted: 1965-04-20
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Wohner Karl-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:34
CPC Classifications
G; G03; G03B; G03B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A PHOTOGRAPHIC CAMERA PROVIDED WITH A PHOTOGRAPHIC OBJECTIVE AND A SHUTTER IN REAR OF SAID OBJECTIVE, A ROTATABLY MOUNTED DISTANCE ADJUSTING RING, A FIRST MEANS OPERATIVELY CONNECTING SAID DISTANCE ADJUSTING RING WITH SAID PHOTOGRAPHIC OBJECTIVE FOR AXIAL DISPLACEMENT WHEN SAID DISTANCE ADJUSTING RING IS ROTATED, AND A SECOND MEANS OPERATIVELY CONNECTING SAID DISTANCE ADJUSTING RING
Claim 2
Dependent Claim
56 words
IN A PHOTOGRAPHIC CAMERA PROVIDED WITH A PHOTOGRAPHIC OBJECTIVE AND A SHUTTER IN REAR OF SAID OBJECTIVE, A ROTATABLY MOUNTED DISTANCE ADJUSTING RING, A FIRST MEANS OPERATIVELY CONNECTING SAID DISTANCE ADJUSTING RING WITH SAID PHOTOGRAPHIC OBJECTIVE FOR AXIAL DISPLACEMENT WHEN SAID DISTANCE ADJUSTING RING IS ROTATED, AND A SECOND MEANS OPERATIVELY CONNECTING SAID DISTANCE ADJUSTING RING
References Cited (Backward Citations)
US2265896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |