Patent US3409994A successfully refreshed from Google Patents.
US3409994A
Expired / Lapsed
US
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Heating control system for clothes dryer
Assignee: Motors Liquidation Co
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Filing: 1966-09-15
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Granted: 1968-11-12
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Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Menk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:48
CPC Classifications
G; G05; G05D; G05D22/00; G05D22/02; D; D06; D06F; D06F58/00; D06F58/32; D06F58/34; D06F58/36; D06F58/38; D06F2103/00; D06F2103/02; D06F2103/08; D06F2103/10; D06F2103/28; D06F2103/32; D06F2103/34; D06F2103/44; D06F2105/00; D06F2105/28; D06F2105/46; D06F34/00; D06F34/08
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |