US3303314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductor
Assignee: Deutsche Edelstahlwerke AG
•
Filing: 1964-06-23
•
Granted: 1967-02-07
•
Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Kuhlbars Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/40; H05B6/10; H05B6/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN INDUCTOR FOR HEAT TREATING AN ANGULAR WORKPIECE COMPRISING ANGULARLY ARRANGED CONDUCTOR PORTIONS HAVING OPPOSED END MITRE FACES ELECTRICALLY CONNECTED ONLY IN THE REGION OF THE OUTER VERTEX OF THE MITRE ANGLE AND COMPRISING A WIRE FORMING THE SAID ELECTRICAL CONNECTION AND BEING WELDED ACROSS THE SAID END MITRE FACES AND INSULATING MATERIAL FILLING THE SAID GAP BETWEEN THE SAID FACES.
Claim 2
Dependent Claim
61 words
AN INDUCTOR FOR HEAT TREATING AN ANGULAR WORKPIECE COMPRISING ANGULARLY ARRANGED CONDUCTOR PORTIONS HAVING OPPOSED END MITRE FACES ELECTRICALLY CONNECTED ONLY IN THE REGION OF THE OUTER VERTEX OF THE MITRE ANGLE AND COMPRISING A WIRE FORMING THE SAID ELECTRICAL CONNECTION AND BEING WELDED ACROSS THE SAID END MITRE FACES AND INSULATING MATERIAL FILLING THE SAID GAP BETWEEN THE SAID FACES.
References Cited (Backward Citations)
US2810054A
Cited
US2810053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |