Patent US3258334A successfully refreshed from Google Patents.
US3258334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper base alloy
Assignee: INTERNAT COPPER RES ASS Inc
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Filing: 1964-01-08
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Granted: 1966-06-28
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Expires: 1984-01-08
Abstract
No abstract record available.
Inventors
- 👤 Edward V Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:01
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A COPPER BASE ALLOY SUBSTANTIALLY FREE OF LEAD AND TIN, AND HAVING A COMPOSITION COMPRISING THE FOLLOWING ELEMENTS AND WITHIN THE RANGE INDICATED BELOW:
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |