US2868481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autopilot
Assignee: Research Corp
•
Filing: 1951-09-05
•
Granted: 1959-01-13
•
Expires: 1971-09-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Seamans
- 👤 Henry P Whitaker
- 👤 Frank P Wilkins
- 👤 Sidney A Wingate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/0841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1900709A
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US2448564A
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US2415430A
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US2387795A
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US2509446A
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US2432036A
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US2586817A
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US2586034A
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US2649264A
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US2649564A
Cited
US2638288A
Cited
US2617615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |