Patent US2519963A successfully refreshed from Google Patents.
US2519963A
Expired / Lapsed
US
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Pilot seat
Assignee: RTX Corp
•
Filing: 1947-01-30
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Granted: 1950-08-22
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Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert C Heffernan
- 👤 Fred N Dickerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US267748A
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US363751A
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US514830A
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US519883A
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US1713034A
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US2118689A
Cited
US2133471A
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FR853982A
Cited
US2345182A
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US2485111A
Cited
US2459843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |