US2557103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target course gyroscope sight
Assignee: Unisys Corp
•
Filing: 1944-10-20
•
Granted: 1951-06-19
•
Expires: 1964-10-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Edmund B Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:22
CPC Classifications
F; F41; F41G; F41G3/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1651093A
Cited
US2404379A
Cited
US1031769A
Cited
US1650628A
Cited
US1936442A
Cited
US2437463A
Cited
US2441147A
Cited
US2464195A
Cited
US2407191A
Cited
US2467831A
Cited
US2423831A
Cited
US2471278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |