US3547603A
Expired / Lapsed
US
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Method of making a thermal barrier
Assignee: CLIFFORD I BRAGMAN
•
Filing: 1968-12-30
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Granted: 1970-12-15
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Expires: 1988-12-30
Abstract
No abstract record available.
Inventors
- 👤 Clifford I Bragman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:57
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/273; B; B21; B21D; B21D53/00; B21D53/74; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49799; Y10T29/49826; Y10T29/49908; Y10T29/49924; Y10T29/49936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US638564A
Cited
US1163784A
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US1991681A
Cited
US2564900A
Cited
US3167856A
Cited
US3222769A
Cited
US3156332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |