US3008029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for testing of composite sandwich structures
Assignee: General Dynamics Corp
•
Filing: 1957-06-07
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Granted: 1961-11-07
•
Expires: 1977-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Davis
- 👤 Clayton D Little
- 👤 Dowell V Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:46
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932703A
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US2059835A
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US2223331A
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US2303873A
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US2364730A
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US2386319A
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US2555416A
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US2694135A
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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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |