US2643221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of phosphorusnickel and phosphorus-cobalt alloys
Assignee: United States Department of the Army
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Filing: 1950-11-30
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Granted: 1953-06-23
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Expires: 1970-11-30
Abstract
No abstract record available.
Inventors
- 👤 Brenner Abner
- 👤 Dwight E Couch
- 👤 Eugenia K Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:36
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C23C22/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF ELECTRODEPOSITING ALLOYS OF PHOSPHORUS WITH A METAL OF THE GROUP CONSISTING OF NICKEL AND COBALT WHICH COMPRISES ELECTROLYZING A SOLUTION CONTAINING SAID METAL IN THE FORM OF A SALT CHOSEN FROM THE GROUP CONSISTING OF SULPHATES AND CHLORIDES IN THE PRESENCE OF PHOSPHORIC ACID AND PHOSPHOROUS ACID AND HAVING A PH O FABOUT 0.5 TO 2.0.
Claim 2
Independent Claim
59 words
THE METHOD OF ELECTRODEPOSITING ALLOYS OF PHOSPHORUS WITH A METAL OF THE GROUP CONSISTING OF NICKEL AND COBALT WHICH COMPRISES ELECTROLYZING A SOLUTION CONTAINING SAID METAL IN THE FORM OF A SALT CHOSEN FROM THE GROUP CONSISTING OF SULPHATES AND CHLORIDES IN THE PRESENCE OF PHOSPHORIC ACID AND PHOSPHOROUS ACID AND HAVING A PH O FABOUT 0.5 TO 2.0.
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |