Patent US2191993A successfully refreshed from Google Patents.
US3535767A
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Method for joining metallic tubes by explosive bonding
Assignee: Aerojet Rocketdyne Inc
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Filing: 1965-08-19
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Granted: 1970-10-27
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Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Doherty Jr
- 👤 Louis H Knop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; B23K20/085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 0
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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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |