Patent US3425437A successfully refreshed from Google Patents.
US3425437A
Expired / Lapsed
US
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Fluid control device for automatic laundry machines
Assignee: Fedders Corp
•
Filing: 1967-02-02
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Granted: 1969-02-04
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Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 Carl J Knerr
- 👤 William C Silva
- 👤 Curtis R Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:35
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/08; D06F39/083; D06F37/00; D06F37/42; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/268; Y10T137/2685; Y10T137/8593; Y10T137/86493; Y10T137/86847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302012A
Cited
US2296648A
Cited
US2539407A
Cited
US2620820A
Cited
US2931199A
Cited
US2924959A
Cited
US2893416A
Cited
US3220553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |