US2941308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry drier heater element control
Assignee: Whirlpool Corp
•
Filing: 1956-07-27
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Granted: 1960-06-21
•
Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 Clifton A Cobb
- 👤 James T Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/32; D06F58/34; D06F58/50; D06F2103/00; D06F2103/28; D06F2103/30; D06F2103/36; D06F2105/00; D06F2105/28; D06F2105/58; D06F2105/60; D06F58/20; D06F58/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1217229A
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US2004448A
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US2360915A
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US2550118A
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US2604313A
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US2577104A
Cited
US2644246A
Cited
US2608003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |