Patent US4237156A successfully refreshed from Google Patents.
Patent US3063828A successfully refreshed from Google Patents.
US3063828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing coppersulfur alloys
Assignee: Cyprus Amax Minerals Co
•
Filing: 1960-05-04
•
Granted: 1962-11-13
•
Expires: 1980-05-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Archibald A K Booth
- 👤 John J Burgmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:29
CPC Classifications
C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
IN A PROCESS IN WHICH MOLTEN COPPER IS CONTACTED WITH SULFUR FOR ALLOYING THEREWITH, THE IMPROVEMENT PROVIDING A COPPER-SULFUR ALLOY OF REDUCED SUSCEPTIBILITY TO
Claim 2
Dependent Claim
24 words
IN A PROCESS IN WHICH MOLTEN COPPER IS CONTACTED WITH SULFUR FOR ALLOYING THEREWITH, THE IMPROVEMENT PROVIDING A COPPER-SULFUR ALLOY OF REDUCED SUSCEPTIBILITY TO
References Cited (Backward Citations)
US1315208A
Cited
GB111288A
Cited
US1587600A
Cited
GB350775A
Cited
US1931144A
Cited
US2091981A
Cited
US2678266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |