US2756625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun sighting mechanism having gyroscopically controlled transparent mirror
Assignee: General Electric Co
•
Filing: 1949-05-04
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Granted: 1956-07-31
•
Expires: 1969-05-04
Abstract
No abstract record available.
Inventors
- 👤 Frithiof V Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/644
Claims Analysis
Total Claims: 0
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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) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |