Patent US2844580A successfully refreshed from Google Patents.
US2844580A
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Alkyldithiocarbamic acids
Assignee: Dow Chemical Co
•
Filing: 1957-09-09
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Granted: 1958-07-22
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Bruce A Ashby
- 👤 Edgar C Britton
- 👤 Lee H Horsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A (1-PIPERAZINYL)ALKYLDITHIOCARBAMIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A (1-PIPERAZINYL)ALKYLDITHIOCARBAMIC ACID HAVING THE FORMULA
Claim 3
Independent Claim
27 words
A METHOD FOR THE PREPARATION OF (1-PIPERAZINYL)ALKYL DITHIOCARBAMIC ACIDS WHICH COMPRISES THE STEP OF REACTING AN AMINOALKYL PIPERAZINE WITH CARBON DISULFIDE SAID AMINOALKYL PIPERAZINE HAVING THE FORMULA
Claim 4
Independent Claim
27 words
A METHOD FOR THE PREPARATION OF (1-PIPERAZINYL)ALKYL DITHIOCARBAMIC ACIDS WHICH COMPRISES THE STEP OF REACTING AN AMINOALKYL PIPERAZINE WITH CARBON DISULFIDE SAID AMINOALKYL PIPERAZINE HAVING THE FORMULA
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |