US3075965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfation of alcohols and polyols with salts of acetyl sulfuric acid
Assignee: Eastman Kodak Co
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Filing: 1960-09-16
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Granted: 1963-01-29
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Expires: 1980-09-16
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
- 👤 John E Kiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
C; C07; C07H; C07H11/00; C07C; C07C303/00; C07C303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A METHOD OF PREPARING SULFATE ESTERS OF SUGAR COMPOUNDS WHICH COMPRISES REACTING A SUGAR COMPOUND HAVING A MOLECULAR WEIGHT LESS THAN 5000 WITH AN ALKALI METAL SALT OF ACETYL SULFURIC ACIE AT A TEMPERATURE OF 0-30*C.
Claim 2
Independent Claim
36 words
A METHOD OF PREPARING SULFATE ESTERS OF SUGAR COMPOUNDS WHICH COMPRISES REACTING A SUGAR COMPOUND HAVING A MOLECULAR WEIGHT LESS THAN 5000 WITH AN ALKALI METAL SALT OF ACETYL SULFURIC ACIE AT A TEMPERATURE OF 0-30*C.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |