US3423557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for moving a cooled zone through an inductively heated workpiece
Assignee: Ohio Crankshaft Co
•
Filing: 1966-05-09
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Granted: 1969-01-21
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 John Charles Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/101; H05B6/103; H05B6/104; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1076; Y10T117/1088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2383992A
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US2386819A
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US2826666A
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US2856499A
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US3124633A
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US3153717A
Cited
US3209114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |