US2546150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for securing adhesion of electroplated coatings to a metal base
Assignee: Individual
•
Filing: 1946-11-08
•
Granted: 1951-03-27
•
Expires: 1966-11-08
Abstract
No abstract record available.
Inventors
- 👤 Brenner Abner
- 👤 Polly S Burkhead
- 👤 Grace E Riddell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:39
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD OF IMPROVING THE ADHESION TO A COBALT BASE OF AN ELECTROLYTICALLY CODEPOSITED ALLOY OF TUNGSTEN AND A METAL OF THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, WHICH METHOD COMPRISES THE STEPS OF MAKING THE COBALT BASE AN ELECTRODE IN AN ELECTROLYTIC BATH FROM WHICH ONE OF SAID TUNGSTEN ALLOYS CAN BE PLATED UPON SAID BASE AND PASSING ALTERNATING CURRENT AT A CURRENT DENSITY OF FROM ABOUT 0.25 TO 1 AMPERE PER SQUARE DECIMETER THROUGH SAID BATH AND THROUGH SAID BASE FOR FROM ABOUT FIVE SECONDS TO SEVERAL MINUTES IMMEDIATELY PRIOR TO CODEPOSITING THE ALLOY FROM SAID BATH UPON SAID BASE BY PASSAGE OF DIRECT CURRENT THROUGH THE BATH AND THROUGH THE BASE.
Claim 2
Independent Claim
115 words
THE METHOD OF IMPROVING THE ADHESION TO A COBALT BASE OF AN ELECTROLYTICALLY CODEPOSITED ALLOY OF TUNGSTEN AND A METAL OF THE GROUP CONSISTING OF IRON, NICKEL AND COBALT, WHICH METHOD COMPRISES THE STEPS OF MAKING THE COBALT BASE AN ELECTRODE IN AN ELECTROLYTIC BATH FROM WHICH ONE OF SAID TUNGSTEN ALLOYS CAN BE PLATED UPON SAID BASE AND PASSING ALTERNATING CURRENT AT A CURRENT DENSITY OF FROM ABOUT 0.25 TO 1 AMPERE PER SQUARE DECIMETER THROUGH SAID BATH AND THROUGH SAID BASE FOR FROM ABOUT FIVE SECONDS TO SEVERAL MINUTES IMMEDIATELY PRIOR TO CODEPOSITING THE ALLOY FROM SAID BATH UPON SAID BASE BY PASSAGE OF DIRECT CURRENT THROUGH THE BATH AND THROUGH THE BASE.
References Cited (Backward Citations)
US811759A
Cited
US1600355A
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US2063760A
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US2080506A
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US2363973A
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US2370108A
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US2432893A
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US2432894A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |