US2543848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun sighting aid
Assignee: Individual
•
Filing: 1949-07-14
•
Granted: 1951-03-06
•
Expires: 1969-07-14
Abstract
No abstract record available.
Inventors
- 👤 Hanson George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:09
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE182585C
Cited
DE355812C
Cited
US739182A
Cited
FR408700A
Cited
US1176893A
Cited
US2014137A
Cited
US2106632A
Cited
GB606065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |