US2550693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque meter
Assignee: Collins Radio Co
•
Filing: 1944-11-13
•
Granted: 1951-05-01
•
Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 Hart Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:21
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/02; G01L3/14; G01L3/1464; G01L3/1471
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US28925A
Cited
US670324A
Cited
US1429165A
Cited
US1574491A
Cited
US1557956A
Cited
US2007505A
Cited
GB488154A
Cited
US2289285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |