US2562631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm valve
Assignee: Whirlpool Corp
•
Filing: 1945-12-15
•
Granted: 1951-07-31
•
Expires: 1965-12-15
Abstract
No abstract record available.
Inventors
- 👤 Harold E Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16; F16K31/00; F16K31/02; F16K31/06; F16K31/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US594346A
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US1952147A
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US2153029A
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US2216292A
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US2243815A
Cited
US2286282A
Cited
US2324100A
Cited
US2333913A
Cited
US2376918A
Cited
US2414196A
Cited
US2427441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |