US2990375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy duty liquid detergent compositions
Assignee: Dow Chemical Co
•
Filing: 1957-07-22
•
Granted: 1961-06-27
•
Expires: 1977-07-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Steinhauer
- 👤 Joseph C Valenta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:20
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D1/24; C11D3/00; C11D3/02; C11D3/04; C11D3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A CLEAR TRANSPARENT AQUEOUS LIQUID DETERGENT COMPOSITION CONSISTING OF A TRANSPARENT AQUEOUS SOLUTION CONTAINING (1) AN ALKYL DIPHENYL ETHER SULFONATE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
24 words
A CLEAR TRANSPARENT AQUEOUS LIQUID DETERGENT COMPOSITION CONSISTING OF A TRANSPARENT AQUEOUS SOLUTION CONTAINING (1) AN ALKYL DIPHENYL ETHER SULFONATE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2081876A
Cited
GB475955A
Cited
US2204339A
Cited
US2383502A
Cited
US2486921A
Cited
US2854477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |