Patent US2630500A successfully refreshed from Google Patents.
US2630500A
Expired / Lapsed
US
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Electric contact making device
Assignee: Telephone Manufacturing Co Ltd
•
Filing: 1950-11-29
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Granted: 1953-03-03
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Expires: 1970-11-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Rommel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:04
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/56; H01H50/58; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2086136A
Cited
US2348088A
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US2385858A
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US2444026A
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US2390344A
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US2500413A
Cited
US2523360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |