US2648747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact
Assignee: Gibson Electric Co
•
Filing: 1950-08-24
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Granted: 1953-08-11
•
Expires: 1970-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert C Graves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:47
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0233; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A CONTACT COMPRISING 20-60% OF A BASIC CURRENT CARRYING MATERIAL 20-50% OF A REFRACTORY ELEMENT AND 20-50% OF A REFRACTORY CARBIDE, THE REFRACTORY ELEMENT AND THE REFRACTORY CARBIDE BEING IN THE FORM OF A SINTERED SLUG, THE PORES THEREOF BEING SUBSTANTIALLY FILLED WITH SAID CURRENT CARRYING MATERIAL.
Claim 2
Dependent Claim
47 words
A CONTACT COMPRISING 20-60% OF A BASIC CURRENT CARRYING MATERIAL 20-50% OF A REFRACTORY ELEMENT AND 20-50% OF A REFRACTORY CARBIDE, THE REFRACTORY ELEMENT AND THE REFRACTORY CARBIDE BEING IN THE FORM OF A SINTERED SLUG, THE PORES THEREOF BEING SUBSTANTIALLY FILLED WITH SAID CURRENT CARRYING MATERIAL.
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) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |