US2612093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system with semiautomatic diaphragm adjustment to preselected position
Assignee: Jos Schneider Optische Werke GmbH
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Filing: 1950-05-31
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Granted: 1952-09-30
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Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 Schutz Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:31
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/02; G03B9/07; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
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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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |