Patent US2890515A successfully refreshed from Google Patents.
US2303582A
Expired / Lapsed
US
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Treatment of organic sulphates
Assignee: Colgate Palmolive Co
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Filing: 1938-10-08
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Granted: 1942-12-01
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Expires: 1958-10-08
Abstract
No abstract record available.
Inventors
- 👤 Russell Kenneth Lyman
- 👤 Miles Gilbert De Wayne
- 👤 Bell Adam Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:41
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/42; C07C303/44
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) | 1945-11-30 | 1946-06-01 | 1946-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-30 | 1950-06-01 | 1950-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-30 | 1954-06-01 | 1954-12-01 | $7700.00 | Window Closed / Lapsed |