Patent US3474520A successfully refreshed from Google Patents.
US3474520A
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Process for explosive bonding of metals
Assignee: Asahi Kasei Corp
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Filing: 1967-11-20
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Granted: 1969-10-28
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Yu Takizawa
- 👤 Minoru Ikeda
- 👤 Shoji Tojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12875; Y10T428/12951; Y10T428/12972
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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |