US2822455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating apparatus
Assignee: General Electric Co
•
Filing: 1953-08-21
•
Granted: 1958-02-04
•
Expires: 1973-08-21
Abstract
No abstract record available.
Inventors
- 👤 Robert J Molyneaux
- 👤 Kenneth H Walkoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/2451; G05D23/2453; F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/105; F24C15/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1276589A
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US1528053A
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US2392635A
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US2552480A
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US2496860A
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US2488580A
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US2479319A
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US2534097A
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US2549095A
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US2602132A
Cited
US2659801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |