US3025905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for precision forming
Assignee: North American Aviation Corp
•
Filing: 1957-02-07
•
Granted: 1962-03-20
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Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 Roger S Haerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:53
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189622998A
Cited
US663156A
Cited
US2460519A
Cited
US2527983A
Cited
GB666330A
Cited
US2755545A
Cited
US2814101A
Cited
US2789204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |