US2686212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating apparatus
Assignee: General Electric Co
•
Filing: 1953-08-03
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Granted: 1954-08-10
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Fordyce H Horn
- 👤 Raymond L Neubauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:17
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/30; C; C30; C30B; C30B15/00; C30B15/14; H05B6/24; H05B6/26; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |