US3173940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxyloweralkylene glycol di alpha-sulpho monocarboxylates and salts thereof
Assignee: Eastman Kodak Co
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Filing: 1962-04-16
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Granted: 1965-03-16
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Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
- 👤 Jr Vinton A Hoyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:17
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/008; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/17; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
A COMPOUND CONSISTING OF THE DIESTER OF (A) AN A-SULFO ALKYL MONOCARBOXYLIC ACID CONTAINING 2 TO 4 CARBON ATOMS AND (B) A POLYGLYCOL SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE GLYCOLS HAVING AVERAGE MOLECULAR WEIGHTS FROM 1000 TO 5000 AND POLYBUTYLENE GLYCOLS HAVING AVERAGE MOLECULAR WEIGHTS FROM 300 TO 1500.
Claim 2
Dependent Claim
50 words
A COMPOUND CONSISTING OF THE DIESTER OF (A) AN A-SULFO ALKYL MONOCARBOXYLIC ACID CONTAINING 2 TO 4 CARBON ATOMS AND (B) A POLYGLYCOL SELECTED FROM THE GROUP CONSISTING OF POLYPROPYLENE GLYCOLS HAVING AVERAGE MOLECULAR WEIGHTS FROM 1000 TO 5000 AND POLYBUTYLENE GLYCOLS HAVING AVERAGE MOLECULAR WEIGHTS FROM 300 TO 1500.
Claim 3
Dependent Claim
35 words
A SURFACE ACTIVE COMPOUND CONSISTING OF A NORMAL SALT OF THE COMPOUND DEFINED IN CLAIM 1, SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF THE SODIUM, POTASSIUM, AMMONIUM NOMO-(B-HYDROXYETHYL)AMINO, DI-(BHYDROXYETHYL)AMINO AND TRI-(B-HYDROXYETHYL)AMINO SALT FORMS.
References Cited (Backward Citations)
GB377249A
Cited
US3041371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |