US2551413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing silverthallium-indium alloys
Assignee: Duracell Inc USA
•
Filing: 1946-01-31
•
Granted: 1951-05-01
•
Expires: 1966-01-31
Abstract
No abstract record available.
Inventors
- 👤 James M Booe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:30
CPC Classifications
C; C22; C22C; C22C5/00; C22C5/06; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12681; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD OF FORMING A BEARING ALLEY WHICH COMPRISES ELECTROPLATING SUCCESSIVE LAYERS OF INDIUM, THALLIUM AND INDIUM OVER A SILVER BASE AND SUBJECTING THE RESULTING COMBINATION OF HEAT TREATMENT FOR ABOUT 6 TO 12 HOURS AT A TEMPERATURE OF ABOUT 500 TO 600* C. TO CAUSE DIFFUSION OF
Claim 2
Independent Claim
48 words
THE METHOD OF FORMING A BEARING ALLEY WHICH COMPRISES ELECTROPLATING SUCCESSIVE LAYERS OF INDIUM, THALLIUM AND INDIUM OVER A SILVER BASE AND SUBJECTING THE RESULTING COMBINATION OF HEAT TREATMENT FOR ABOUT 6 TO 12 HOURS AT A TEMPERATURE OF ABOUT 500 TO 600* C. TO CAUSE DIFFUSION OF
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) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |