US2665367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductor for the heat treatment of workpieces, especially crankshafts
Assignee: Deutsche Edelstahlwerke AG
•
Filing: 1949-06-08
•
Granted: 1954-01-05
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Expires: 1969-06-08
Abstract
No abstract record available.
Inventors
- 👤 Gerhard W Seulen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:33
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2181899A
Cited
US2419619A
Cited
US2348361A
Cited
US2395196A
Cited
US2456091A
Cited
US2476935A
Cited
US2574564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |