US2701410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing electric heating elements
Assignee: Knapp Monarch Co
•
Filing: 1950-07-01
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Granted: 1955-02-08
•
Expires: 1970-07-01
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Huck
- 👤 John J Kueser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:14
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/48; B; B21; B21C; B21C37/00; B21C37/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49087; Y10T29/49092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US394207A
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US786257A
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US1528388A
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US1669385A
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US1987915A
Cited
US2403022A
Cited
US2375058A
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US2475756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-07 | 1958-08-09 | 1959-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-07 | 1962-08-09 | 1963-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-07 | 1966-08-09 | 1967-02-08 | $7700.00 | Window Closed / Lapsed |