US2847712A
Expired / Lapsed
US
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Method of molding ribbed structures from thermosetting resin and fibrous material
Assignee: Bristol Aircraft Ltd
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Filing: 1953-10-26
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Granted: 1958-08-19
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Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 Pollard Harold John
- 👤 Rees John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:18
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/48; B29C45/00; B29C45/14; B29C45/14778; B29C45/14786; G; G06; G06G; G06G1/00; G06G1/02; G06G1/04; B29K; B29K2061/00; B29K2061/04; B29K2309/00; B29K2309/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |