US2546158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopic instrument
Assignee: Unisys Corp
•
Filing: 1944-09-30
•
Granted: 1951-03-27
•
Expires: 1964-09-30
Abstract
No abstract record available.
Inventors
- 👤 Montgomery H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:50
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/56; G01C19/5635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22409E
Cited
US2018318A
Cited
US1863415A
Cited
US1995305A
Cited
FR736470A
Cited
US2265011A
Cited
US2376883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |