US2562883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of carbohydrate esters
Assignee: Sharples Chemicals Inc
•
Filing: 1948-09-02
•
Granted: 1951-08-07
•
Expires: 1968-09-02
Abstract
No abstract record available.
Inventors
- 👤 Harold N Barham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:03
CPC Classifications
C; C08; C08B; C08B31/00; C08B15/00; C08B3/00; C08B3/22; C08B37/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
A CHLORINATED ACYL ESTER OF A CARBOHYDRATE HAVING RING ATTACHED CHLORINE.
References Cited (Backward Citations)
US1347801A
Cited
US1874350A
Cited
US1946645A
Cited
US2073052A
Cited
GB471847A
Cited
US2489225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |