Patent US3725428A successfully refreshed from Google Patents.
US3725428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-benzothiazol-2-yl-n{40 -propylureas
Assignee: Reckitt and Colman North America Inc
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Filing: 1969-10-22
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Granted: 1973-04-03
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Expires: 1989-10-22
Abstract
Abstract The invention comprises compounds of the general formula IN WHICH Y1, Y2, Y3, Y4, Y5, R1 and R2 have the meanings given below, their process of manufacture, their use as active ingredients in microbiocidal agents and their methods of use.
Inventors
- 👤 S Janiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:10
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82; A; A01; A01N; A01N43/00; A01N43/72; A01N43/74; A01N43/78; A01N47/00; A01N47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A compound as claimed in claim 1 wherein R9 represents n-propyl.
Claim 2
Dependent Claim
11 words
A compound as claimed in claim 1 wherein R9 represents isopropyl.
References Cited (Backward Citations)
US2756135A
Cited
US3551441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |