US2444645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid handling system for automatic cleansing apparatus
Assignee: Whirlpool Corp
•
Filing: 1945-01-22
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Granted: 1948-07-06
•
Expires: 1965-01-22
Abstract
No abstract record available.
Inventors
- 👤 Geldhof Peter Eduard
- 👤 Ringer Luther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:58
CPC Classifications
D; D06; D06F; D06F7/00; D06F34/00; D06F34/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US622A
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US780971A
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US1355797A
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US1508731A
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US1981839A
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US2019766A
Cited
US2045823A
Cited
US2391561A
Cited
US2414196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |