US3551237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing filament-wound open beam structures
Assignee: Aerojet Rocketdyne Inc
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Filing: 1967-04-18
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Granted: 1970-12-29
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Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 William T Cox
- 👤 Harold H Buday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:28
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/28; B; B29; B29C; B29C53/00; B29C53/56; B29C53/564; B29C53/80; B29C53/82; B29C53/821; B29C53/824; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/205; B29D; B29D28/00; B29D28/005; B64; B64C; B64C3/00; B29L; B29L2031/00; B29L2031/30; B29L2031/3076; B29L2031/3085; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |