US2648370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for progressive forming of c-stage plastic material
Assignee: North American Aviation Corp
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Filing: 1950-03-18
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Granted: 1953-08-11
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Expires: 1970-03-18
Abstract
No abstract record available.
Inventors
- 👤 William I Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C53/063; B29C53/066; B29D; B29D99/00; B29D99/0039; B29C37/00; B29C37/0053; B29C37/0057; B29L; B29L2031/00; B29L2031/44; B29L2031/441; Y; Y10; Y10S; Y10S264/00; Y10S264/59; Y10S264/66; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1046; Y10T156/1089; Y10T156/1092
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |