Patent US3686099A successfully refreshed from Google Patents.
US3686099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent
Assignee: Individual
•
Filing: 1968-02-26
•
Granted: 1972-08-22
•
Expires: 1988-02-26
Abstract
Abstract CNH2N+1SO3NA METHOD FOR CLEANING CARGO TANKS OF SEA TANKERS FROM THE REMAINS OF OIL PRODUCTS, FATS AND THE LIKE CONSISTING ESSENTIALLY OF 65-75 WT. PERCENT OF AN ALKYLSULFONATE HAVING THE GENERAL FORMULA WHEREIN N=6-7. THE DETERGENT IS PREFERABLY USED AS A 0.05-0.2% SOLUTION IN SEA WATER AT A TEMPERATURE OF 6080* C. 1,3-DI((CH3)3-C-),4-(H-(O-CH2-CH2)N-O-)BENZENE WHEREIN N=10-14, AND 3-7, WT. PERCENT OF A POLYETHYLENE GLYCOL ETHER OF DI-TERT-BUTYLPHENOL HAVING THE GENERAL FORMULA 1-(CNH(2N+1)-),4-(NA-O3S-)BENZENE WHEREIN N=12-18, 20-30 WT. PERCENT OF AN ALKYLBENZENESULFONATE HAVING THE GENERAL FORMULA
Inventors
- 👤 Nina Andreevna Gerchenova
- 👤 Lev Moiseevich Gurvich
- 👤 Olga Ivanovna Zelenskaya
- 👤 Alexandr Filippovich Koretsky
- 👤 Petr Alexeevich Machulsky
- 👤 Maria Petrovna Nesterova
- 👤 Arkady Borisovich Taubman
- 👤 Ekaterina Vasilievna Furaeva
- 👤 Evdokia Prokofievna Selifanova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:24
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72; C11D1/02; C11D1/37; C11D1/83; C11D1/831; C11D1/12; C11D1/14; C11D1/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |