Patent US3466427A successfully refreshed from Google Patents.
US3466427A
Expired / Lapsed
US
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Plug-in electric heating assembly
Assignee: Electro Therm Inc
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Filing: 1967-10-13
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Granted: 1969-09-09
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Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 Nicholas J Burger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:56
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/104; H; H01; H01R; H01R24/00; H01R24/20; H01R2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3016444A
Cited
US3327095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |