Patent US2848588A successfully refreshed from Google Patents.
US2848588A
Expired / Lapsed
US
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Control system for electric heating
Assignee: AMERICAN ENERGETICS Corp
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Filing: 1956-06-29
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Granted: 1958-08-19
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 William C Hackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:27
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194165A
Cited
US1883766A
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US2161614A
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US2419083A
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US2598036A
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US2706240A
Cited
US2788416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |