Patent US2314996A successfully refreshed from Google Patents.
US2643904A
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US
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Sealing element
Assignee: Consolidated Vultee Aircraft Corp
•
Filing: 1947-02-14
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Granted: 1953-06-30
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Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Oscar Y Wehmanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; Y; Y10; Y10S; Y10S238/00; Y10S238/01; Y10S411/00; Y10S411/90; Y10S411/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2123035A
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US2287135A
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US2310405A
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US2353988A
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US2367697A
Cited
US2419385A
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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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |