US2805192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plated refractory metals
Assignee: General Electric Co
•
Filing: 1954-05-28
•
Granted: 1957-09-03
•
Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Sidney S Brenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/38; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S60/00; Y10S60/909; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF PROVIDING AN ADHERENT METALLIC FILM ON AN ARTICLE CONSISTING OF A METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, MOLYBDENUM, TUNGSTEN BASE ALLOYS AND MOLYBDENUM BASE ALLOYS COMPRISING THE STEPS OF COATING THE SURFACE OF THE ARTICLE WITH A FILM OF MATALLIC COPPER AND ZINC BY ELECTRODEPOSITION, ANNEALING THE COATED ARTICLE IN A NON-OXIDIZING ATMOSPHERE AT ABOUT 900* TO 1000*C. UNTIL THE ZINC HAS BEEN SUBSTANTIALLY COMPLETELY VOLATILIZED AND ELECTRODEPOSITING A METALLIC FERROMAGNETIC FILM OVER THE DEZINCIFIED RESIDUAL COPPER FILM.
Claim 2
Independent Claim
83 words
A METHOD OF PROVIDING AN ADHERENT METALLIC FILM ON AN ARTICLE CONSISTING OF A METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, MOLYBDENUM, TUNGSTEN BASE ALLOYS AND MOLYBDENUM BASE ALLOYS COMPRISING THE STEPS OF COATING THE SURFACE OF THE ARTICLE WITH A FILM OF MATALLIC COPPER AND ZINC BY ELECTRODEPOSITION, ANNEALING THE COATED ARTICLE IN A NON-OXIDIZING ATMOSPHERE AT ABOUT 900* TO 1000*C. UNTIL THE ZINC HAS BEEN SUBSTANTIALLY COMPLETELY VOLATILIZED AND ELECTRODEPOSITING A METALLIC FERROMAGNETIC FILM OVER THE DEZINCIFIED RESIDUAL COPPER FILM.
References Cited (Backward Citations)
US1597189A
Cited
US1524448A
Cited
US2115749A
Cited
US2221562A
Cited
US2392456A
Cited
US2683305A
Cited
US2697130A
Cited
GB717985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |