US2797982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonium chloride
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1954-06-29
•
Granted: 1957-07-02
•
Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Mckinney William Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:40
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/16; C01C1/164; B; B01; B01J; B01J2/00; B01J2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A FREE-FLOWING, NON-CAKING COMPOSITION CONTAINING AT LEAST 96.0% BY WEIGHT OF AMMONIUM CHLORIDE AND BETWEEN 0.01% AND 0.5% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF A WATER-SOLUBLE SALT OF A LONG CHAIN ALKYLAMINE AND A SODUM SALT OF A LONG CHAIN ALKYL-ARYL SULPHONIC ACID, SAID LONG CHAIN ALKYLAMINE AND SAID LONG CHAIN ALKYLARYL SULPHONIC ACID BOTH CONTAINING AT LEAST 8 CARBON ATOMS IN THE ALKYL CHAIN.
Claim 2
Dependent Claim
69 words
A FREE-FLOWING, NON-CAKING COMPOSITION CONTAINING AT LEAST 96.0% BY WEIGHT OF AMMONIUM CHLORIDE AND BETWEEN 0.01% AND 0.5% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF A WATER-SOLUBLE SALT OF A LONG CHAIN ALKYLAMINE AND A SODUM SALT OF A LONG CHAIN ALKYL-ARYL SULPHONIC ACID, SAID LONG CHAIN ALKYLAMINE AND SAID LONG CHAIN ALKYLARYL SULPHONIC ACID BOTH CONTAINING AT LEAST 8 CARBON ATOMS IN THE ALKYL CHAIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |