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US2910568A
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US
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Resistance heating device
Assignee: GM Pfaff AG
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Filing: 1957-01-09
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Granted: 1959-10-27
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Expires: 1977-01-09
Abstract
No abstract record available.
Inventors
- 👤 Schenkengel Emerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:34
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/22; B29C65/221; B29C65/224; B29C65/226; B29C65/228; B29C65/78; B29C65/7802; B29C65/7832; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/81; B29C66/818; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/84; B29C66/845; B29C66/812; B29C66/8122
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |