US2764065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anamorphic lens system
Assignee: Individual
•
Filing: 1955-03-10
•
Granted: 1956-09-25
•
Expires: 1975-03-10
Abstract
No abstract record available.
Inventors
- 👤 Donald R Buchele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
G; G02; G02B; G02B13/00; G02B13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE624178C
Cited
US988720A
Cited
US1938808A
Cited
US2036622A
Cited
US2143059A
Cited
US2391430A
Cited
US2428399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |