US2562884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of carbohydrate ethers
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
2026-10-24 01:39
CPC Classifications
C; C08; C08B; C08B15/00; C08B11/00; C08B11/20; C08B31/00; C08B37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A CHLORINATED SUGAR ETHER CONTAINING AT LEAST ONE SUBSTITUTED CHLORINE ATOM PER SUGAR UNIT.
Claim 2
Dependent Claim
14 words
A CHLORINATED SUGAR ETHER CONTAINING AT LEAST ONE SUBSTITUTED CHLORINE ATOM PER SUGAR UNIT.
References Cited (Backward Citations)
US1864554A
Cited
US1948517A
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US2073052A
Cited
GB471847A
Cited
US2104017A
Cited
US2422572A
Cited
US2448510A
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 |