US2798936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for welding contacts onto relay parts
Assignee: AT&T Inc
•
Filing: 1953-04-07
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Granted: 1957-07-09
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Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Amos L Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/04; H01H11/041; H01H11/043; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1715099A
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US1601283A
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US2078694A
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US2129845A
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US2428540A
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US2419749A
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US2467379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |