US3509765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inertial navigation system
Assignee: Motors Liquidation Co
•
Filing: 1965-12-17
•
Granted: 1970-05-05
•
Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Stevenson Jr
- 👤 Robert L Berg
- 👤 Arnold A Weiss
- 👤 James L Stockard
- 👤 Robert F Shipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
G; G01; G01C; G01C19/00; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166; G01C21/18; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3028592A
Cited
US3222795A
Cited
US3052129A
Cited
US3281581A
Cited
US3312423A
Cited
US3310986A
Cited
US3355944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |