US3425885A
Expired / Lapsed
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Method for making a heat insulating and ablative structure
Assignee: National Aeronautics and Space Administration
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Filing: 1965-02-11
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Granted: 1969-02-04
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Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 Clive A Newcombe
- 👤 John H Proemsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/18; B29C44/186; B32; B32B; B32B3/00; B32B3/10; B32B3/12; B64; B64G; B64G1/00; B64G1/22; B64G1/52; B64G1/58; Y; Y10; Y10S; Y10S264/00; Y10S264/06; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
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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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |