US2818633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact
Assignee: Gibson Electric Co
•
Filing: 1955-03-02
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Granted: 1958-01-07
•
Expires: 1975-03-02
Abstract
No abstract record available.
Inventors
- 👤 Norman S Hoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:49
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/027; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN ELECTRICAL CONTACT COMPRISING THE PRESSED AND SINTERED POWDERS OF MOLYBDENUM, SILVER, NICKEL, IRON, AND LAMPBLACK AND CONSISTING ESSENTIALLY OF 40 PERCENT TO 75 PERCENT MOLYBDENUM, 25 PERCENT TO 60 PERCENT SILVER, 0.1 PERCENT TO 1 PERCENT NICKEL, IRON IN AN AMOUNT UP TO 1 PERCENT AND LAMPBLACK IN AN AMOUNT UP TO 0.5 PERCENT.
Claim 2
Dependent Claim
55 words
AN ELECTRICAL CONTACT COMPRISING THE PRESSED AND SINTERED POWDERS OF MOLYBDENUM, SILVER, NICKEL, IRON, AND LAMPBLACK AND CONSISTING ESSENTIALLY OF 40 PERCENT TO 75 PERCENT MOLYBDENUM, 25 PERCENT TO 60 PERCENT SILVER, 0.1 PERCENT TO 1 PERCENT NICKEL, IRON IN AN AMOUNT UP TO 1 PERCENT AND LAMPBLACK IN AN AMOUNT UP TO 0.5 PERCENT.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |