US2475618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflecting bore sight
Assignee: Individual
•
Filing: 1947-02-11
•
Granted: 1949-07-12
•
Expires: 1967-02-11
Abstract
No abstract record available.
Inventors
- 👤 Harold O Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:00
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/54; F41G1/545
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US399286A
Cited
US2308635A
Cited
US793131A
Cited
US893836A
Cited
US962175A
Cited
US1329366A
Cited
US2294913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |