US3850972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenyl esters of bromomethanesulfonic acid
Assignee: Dow Chemical Co
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Filing: 1972-11-09
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Granted: 1974-11-26
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Expires: 1992-11-09
Abstract
Abstract 1. A PHENYL ESTER OF BROMETHANE SULFONIC ACID WHICH IS SUBSTITUTED IN THE O-, M- OR P-POSITION OF THE PHENYL RING WITH A (2,2 - DICHLORO - 1,1 - DIFLUOROETHOXY) GROUP AND, WHEN SO SUBSTITUTED IN THE P-POSITION, OPTIONALLYL HAVING 2,6 - DIBROMO SUBSTITUTION IN THE PHENYL RING.
Inventors
- 👤 C Goralski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:11
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/63; C07C309/64; C07C309/65; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PHENYL ESTER OF BROMETHANE SULFONIC ACID WHICH IS SUBSTITUTED IN THE O-, M- OR P-POSITION OF THE PHENYL RING WITH A (2,2 - DICHLORO - 1,1 - DIFLUOROETHOXY) GROUP AND, WHEN SO SUBSTITUTED IN THE P-POSITION, OPTIONALLYL HAVING 2,6 - DIBROMO SUBSTITUTION IN THE PHENYL RING.
Claim 2
Dependent Claim
47 words
A PHENYL ESTER OF BROMETHANE SULFONIC ACID WHICH IS SUBSTITUTED IN THE O-, M- OR P-POSITION OF THE PHENYL RING WITH A (2,2 - DICHLORO - 1,1 - DIFLUOROETHOXY) GROUP AND, WHEN SO SUBSTITUTED IN THE P-POSITION, OPTIONALLYL HAVING 2,6 - DIBROMO SUBSTITUTION IN THE PHENYL RING.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |