Patent US4122271A successfully refreshed from Google Patents.
US4122271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piperazinyl-N,N'-bis(dithiotincarbamates)
Assignee: Abbott Laboratories
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Filing: 1977-03-14
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Granted: 1978-10-24
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Expires: 1997-03-14
Abstract
Abstract Protection against certain aquatic pests can be obtained by use of certain alkyl tin dithiocarbamates in the coating for materials exposed to such pests or the aquatic enivornment in contact with these materials.
Inventors
- 👤 John Wesley Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:14
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1606; C09D5/1612; C09D5/1625; C09D5/1631; A; A01; A01N; A01N55/00; A01N55/02; A01N55/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
A compound of the formula ##STR2## wherein each R' is an alkyl group of 1-4 carbon atoms or phenyl.
Claim 2
Dependent Claim
19 words
A compound of the formula ##STR2## wherein each R' is an alkyl group of 1-4 carbon atoms or phenyl.
Claim 3
Dependent Claim
10 words
The compound of claim 1, wherein each R' is methyl.
Claim 4
Dependent Claim
10 words
The compound of claim 1, wherein each R' is phenyl.
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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |