US3663445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cleaning and defatting composition
Assignee: Lever Brothers Co
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Filing: 1969-08-22
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Granted: 1972-05-16
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Expires: 1989-08-22
Abstract
Abstract LIQUID STORABLE CONCENTRATES AND CLEANING AND DEFATTING COMPOSITIONS, PARTICULARLY FOR METAL SURFACES, PREPARED FROM SAID CONCENTRATES BY DILUTION WITH WATER, WHEREIN THE CONCENTRATES COMPRISE A NONIONIC SURFACTANT, AN ALKANOLAMINE SALT OF A FATTY ACID AND AN ALKALOLAMINE.
Inventors
- 👤 Horst Augustin
- 👤 Siegfried Klussendorf
- 👤 Konrad Kofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D1/00; C11D1/66; C11D1/72; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D1/02; C11D1/04; C11D1/06; C11D1/38; C11D1/52; C11D1/521
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |