Patent US2383502A successfully refreshed from Google Patents.
US2383502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid triphosphates as builders for alkyl sulphates and other soapless detergents
Assignee: Procter and Gamble Co
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Filing: 1941-02-06
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Granted: 1945-08-28
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Expires: 1961-02-06
Abstract
No abstract record available.
Inventors
- 👤 Oscar T Quimby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D1/00; C11D1/02; C11D1/12; C11D1/126; C11D1/14; C11D1/146; C11D1/22; C11D1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-08-27 | 1949-02-26 | 1949-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-27 | 1953-02-26 | 1953-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-27 | 1957-02-26 | 1957-08-28 | $7700.00 | Window Closed / Lapsed |