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US2811983A
Expired / Lapsed
US
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Hot water and suds saver
Assignee: Individual
•
Filing: 1955-11-03
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Granted: 1957-11-05
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Expires: 1975-11-03
Abstract
No abstract record available.
Inventors
- 👤 Leland J Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:52
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/20; Y; Y02; Y02B; Y02B40/00; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86187
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |