US3449189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fabricating ablative and insulative structures
Assignee: BP Chemicals Hitco Inc
•
Filing: 1965-04-22
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Granted: 1969-06-10
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Donald M Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:20
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C33/00; B29C33/0033; F; F02; F02K; F02K9/00; F02K9/97; F02K9/972; F02K9/974; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2307/00; B29K2309/00; B29K2309/08; B29K2995/00; B29K2995/0037; B29K2995/0087; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T29/00; Y10T29/49; Y10T29/49346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2009265A
Cited
US2576864A
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US2768920A
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US3081705A
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US3135297A
Cited
US3196061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |