US2553540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun sight
Assignee: Individual
•
Filing: 1946-02-08
•
Granted: 1951-05-22
•
Expires: 1966-02-08
Abstract
No abstract record available.
Inventors
- 👤 Harry N Beckerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/06; F41G1/14; F41G1/42; G; G02; G02B; G02B27/00; G02B27/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |