US2692286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of quaternary ammonium halides
Assignee: California Research LLC
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Filing: 1953-06-29
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Granted: 1954-10-19
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Expires: 1973-06-29
Abstract
No abstract record available.
Inventors
- 👤 Richard D Stayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:44
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A PROCESS FOR PRODUCING GERMICIDAL QUATERNARY AMMONIUM HALIDES BY CONDENSING AN ALKYLBENZYLHALIDE HAVING AN ALKYL GROUP OF 8 TO 18 CARBON ATOMS AND A TERTIARY-AMINE CONTAINING NOT MORE THAN 11 CARBON ATOMS, THE IMPROVEMENT WHICH CONSISTS IN CARRYING OUT THE CONDENSATION IN THE PRESENCE OF WATER AND 0.1 TO 10% BY WEIGHT OF ALKALI METAL BICARBONATE BASED ON THE TOTAL ALKYLBENZYLHIDE AND TERTIARYAMINE.
Claim 2
Dependent Claim
64 words
IN A PROCESS FOR PRODUCING GERMICIDAL QUATERNARY AMMONIUM HALIDES BY CONDENSING AN ALKYLBENZYLHALIDE HAVING AN ALKYL GROUP OF 8 TO 18 CARBON ATOMS AND A TERTIARY-AMINE CONTAINING NOT MORE THAN 11 CARBON ATOMS, THE IMPROVEMENT WHICH CONSISTS IN CARRYING OUT THE CONDENSATION IN THE PRESENCE OF WATER AND 0.1 TO 10% BY WEIGHT OF ALKALI METAL BICARBONATE BASED ON THE TOTAL ALKYLBENZYLHIDE AND TERTIARYAMINE.
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) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |