US2481614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of resistance welding aluminum to steel, and product thereof
Assignee: Stewart Warner Corp
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Filing: 1947-06-27
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Granted: 1949-09-13
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Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
- 👤 Redmond Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:52
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; B23K11/20; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12389; Y10T428/12403; Y10T428/12493; Y10T428/12632; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |