US2508115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse resistance welder
Assignee: Raytheon Co
•
Filing: 1942-12-23
•
Granted: 1950-05-16
•
Expires: 1962-12-23
Abstract
No abstract record available.
Inventors
- 👤 Klemperer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:48
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1168346A
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US1769148A
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US2179105A
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GB519353A
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US2216329A
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US2277146A
Cited
US2298570A
Cited
US2287540A
Cited
US2287544A
Cited
US2276796A
Cited
US2295293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |