Patent US5127075A successfully refreshed from Google Patents.
Patent US3155678A successfully refreshed from Google Patents.
US3155678A
Expired / Lapsed
US
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Certain isothiazole compounds and their production
Assignee: EIDP Inc
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Filing: 1961-11-14
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Granted: 1964-11-03
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 William R Hatchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:38
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/02; C07D275/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
47 words
THE PROCESS OF PREPARING ISOTHIAZOLES WHICH COMPRISES CONTACTING A HALOGENATING AGENT SELECTED FROM THE CLASS CONSISTING OF CHLORINE, BROMINE, THIONYL CHLORIDE, THIONYL BROMIDE, SULFURYL CHLORIDE, SULFURYL BROMIDE, PHOSPHORUS PENTACHLORIDE, AND PHOSPHORUS TRIBROMIDE WITH AN ALKALI METAL SALT OF 2,2-DICYANO-1,1-DIMERCAPTOETHYLENE IN A MOLAR RATIO OF AT LEAST 3:1.
Claim 4
Dependent Claim
47 words
THE PROCESS OF PREPARING ISOTHIAZOLES WHICH COMPRISES CONTACTING A HALOGENATING AGENT SELECTED FROM THE CLASS CONSISTING OF CHLORINE, BROMINE, THIONYL CHLORIDE, THIONYL BROMIDE, SULFURYL CHLORIDE, SULFURYL BROMIDE, PHOSPHORUS PENTACHLORIDE, AND PHOSPHORUS TRIBROMIDE WITH AN ALKALI METAL SALT OF 2,2-DICYANO-1,1-DIMERCAPTOETHYLENE IN A MOLAR RATIO OF AT LEAST 3:1.
References Cited (Backward Citations)
US2839529A
Cited
US2871243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |