US2996137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic radar guided and computer controlled vehicles
Assignee: Individual
•
Filing: 1958-01-29
•
Granted: 1961-08-15
•
Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Chu Yaohan
- 👤 Phillip N Buford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:47
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/75; G01S13/88; G01S13/93; G01S13/931; G05; G05D; G05D1/00; G05D1/02; G05D1/021; G05D1/0257; G01S2013/9318; G01S2013/93185; G01S2013/9319; G01S2013/932; G01S2013/9321; G01S2013/9322; G01S2013/9329; G05D1/0231; G05D1/0244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2074251A
Cited
US2513279A
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US2493755A
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US2702342A
Cited
US2750583A
Cited
US2804160A
Cited
US2841782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |