US3859322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel hydroxy substituted esters of thiolsulfonic acids and their use as microbicides
Assignee: Buckman Laboratories International Inc
•
Filing: 1973-07-26
•
Granted: 1975-01-07
•
Expires: 1993-07-26
Abstract
Abstract The new compounds 2-hydroxyalkyl esters of thiosulfonic acids which are useful as microbicides and methods of preparing the same are described.
Inventors
- 👤 John D Buckman
- 👤 John D Pera
- 👤 Fred W Raths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:01
CPC Classifications
C; C07; C07C; C07C381/00; C07C381/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
9 words
A MEHOD OF PREPARING A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
9 words
A MEHOD OF PREPARING A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
27 words
The method of claim 1 wherein an alkali-metal salt of an alkanethiolsulfonic acid is reacted with propylene oxide or butylene oxide in the presence of acetic acid.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein R and R'' are methyl.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein R is methyl and R'' is ethyl.
References Cited (Backward Citations)
US2484370A
Cited
US3534126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |