US2832263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephoto objectives
Assignee: Taylor Taylor and Hobson Ltd
•
Filing: 1957-03-01
•
Granted: 1958-04-29
•
Expires: 1977-03-01
Abstract
No abstract record available.
Inventors
- 👤 Cook Gordon Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:02
CPC Classifications
G; G02; G02B; G02B13/00; G02B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1156743A
Cited
US2239538A
Cited
US2390387A
Cited
GB587761A
Cited
US2421927A
Cited
US2514591A
Cited
US2631497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |