Patent US3000429A successfully refreshed from Google Patents.
US3000429A
Expired / Lapsed
US
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Machine for prestressing and molding reinforced plastic members
Assignee: Studebaker Packard Corp
•
Filing: 1956-06-22
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Granted: 1961-09-19
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Expires: 1976-06-22
Abstract
No abstract record available.
Inventors
- 👤 Elmer P Warnken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:45
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/54; B29C70/56; B29L; B29L2031/00; B29L2031/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1748603A
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US2103339A
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US2131300A
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US2621140A
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US2378642A
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US2482981A
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US2630868A
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US2712744A
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US2759217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |