US3770732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic thiazines
Assignee: Baker Petrolite LLC
•
Filing: 1971-02-26
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Granted: 1973-11-06
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Expires: 1991-02-26
Abstract
Abstract CYCLIC THIAZINES OF THE FORMULA (Z<(-C(-R)-C(-R)2-N<(-)-C(-R)2-C(-R)2-))(+) X(-) WHERE THE R''S ARE HYDROGEN OR A SUBSTITUTED GROUP SUCH AS A HYDROCARBON GROUP, I.E., ALKYL, ETC. AND -N<(-) IS A CYCLIC MOIETY, Z IS -S-, -SO-, -SO2- AND X IS AN ANION, ARE PREPARED BY REACTING A CYCLIC SECONDARY AMINE SALT WITH A DIVINYL SULFUR COMPOUND. THESE ARE ILLUSTRATED BY THE REACTION OF PIPERIDINE HYDROCHLORIDE WITH DIVINYL SULFONE TO YIELD (-(CH2)5-)>N(+)<(-(CH2)2-SO2-(CH2)2-) CL(-) THESE PRODUCTS HAVE A WIDE VARIETY OF USES INCLUDING THEIR USE AS MICROBIOCIDES, ETC.
Inventors
- 👤 P Quinlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:41
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/10; A; A01; A01N; A01N43/00; A01N43/90
Claims Analysis
Total Claims: 0
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |