Patent US3431104A successfully refreshed from Google Patents.
US3431104A
Expired / Lapsed
US
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Zirconium base alloy
Assignee: United States Atomic Energy Commission
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Filing: 1966-08-08
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Granted: 1969-03-04
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Harold H Klepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:58
CPC Classifications
C; C22; C22C; C22C16/00; C22F; C22F1/00; C22F1/16; C22F1/18; C22F1/186
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |