US2635289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for producing optical and other precision elements and the products thereof
Assignee: Individual
•
Filing: 1945-11-16
•
Granted: 1953-04-21
•
Expires: 1965-11-16
Abstract
No abstract record available.
Inventors
- 👤 Freeman H Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; Y; Y10; Y10S; Y10S425/00; Y10S425/808; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1052; Y10T156/1054
Claims Analysis
Total Claims: 0
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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) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |