Patent US2437253A successfully refreshed from Google Patents.
US2437253A
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Detergent composition
Assignee: Lever Brothers Co
•
Filing: 1940-01-08
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Granted: 1948-03-09
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Expires: 1960-01-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd F Henderson
- 👤 Bernard L Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/06; C11D9/00; C11D9/04; C11D9/06; C11D9/08; C11D9/10; C11D9/12; C11D9/14; C11D2111/00; C11D2111/10; C11D2111/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB198681A
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GB253554A
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GB364565A
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US2159381A
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GB431682A
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GB435475A
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GB461328A
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GB443731A
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GB447072A
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GB452649A
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US2093927A
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US2092913A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |