US2852241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry drier control system
Assignee: CHALLENGE Manufacturing CO
•
Filing: 1957-02-07
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Granted: 1958-09-16
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Expires: 1977-02-07
Abstract
No abstract record available.
Inventors
- 👤 Robert E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:57
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/14; D06F34/20; D06F2103/00; D06F2105/00; D06F2105/28; D06F58/00; D06F58/32; D06F58/34; D06F58/50
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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |