Patent US1257009A successfully refreshed from Google Patents.
US3010367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical sighting lens systems
Assignee: Recon Optical Inc
•
Filing: 1956-12-07
•
Granted: 1961-11-28
•
Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 John R Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:26
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US934579A
Cited
US1786916A
Cited
US2206155A
Cited
US2252681A
Cited
US2398276A
Cited
US2453336A
Cited
US2481639A
Cited
US2719457A
Cited
US2510419A
Cited
US2614461A
Cited
DE924539C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |