Patent US3459544A successfully refreshed from Google Patents.
US3459544A
Expired / Lapsed
US
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High strength alloy of the cu-al-be series
Assignee: Individual
•
Filing: 1967-01-17
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Granted: 1969-08-05
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Expires: 1987-01-17
Abstract
No abstract record available.
Inventors
- 👤 Seizo Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:49
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR750302A
Cited
US2400234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |