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Patent US2964397A successfully refreshed from Google Patents.
US2964397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-boron alloys
Assignee: Individual
•
Filing: 1958-07-28
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Granted: 1960-12-13
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Hugh S Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:23
CPC Classifications
C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
A METHOD OF MAKING ALLOY-LIKE COPPER-BORON COMPOSITIONS COMPRISING PREPARING AN INTIMATE MIXTURE OF PARTICULATE COPPER AND PARTICULATE BORON, AND RAPIDLY HEATING SAID MIXTURE TO ABOVE 1450*C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |