Patent US2710872A successfully refreshed from Google Patents.
US2710872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of esters of dithiocarbamic acid
Assignee: Universal Oil Products Co
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Filing: 1954-04-12
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Granted: 1955-06-14
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Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:37
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0071
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
A PROCESS FOR PRODUCING AN ESTER OF A DITHIOCARBAMIC ACID WHICH COMPRISES REACTING AT A TEMPERATURE BELOW ITS DECOMPOSITION TEMPERATURE A DITHIOCARBAMATE ACID WITH AN ALPHA, BETA-UNSATURATED COMPOUND.
Claim 2
Dependent Claim
28 words
A PROCESS FOR PRODUCING AN ESTER OF A DITHIOCARBAMIC ACID WHICH COMPRISES REACTING AT A TEMPERATURE BELOW ITS DECOMPOSITION TEMPERATURE A DITHIOCARBAMATE ACID WITH AN ALPHA, BETA-UNSATURATED COMPOUND.
Claim 3
Dependent Claim
27 words
A PROCESS FOR PRODUCING ALPHA-METHYL-GAMMAKETOPROPYL - N,N - TETRAMETHYLENE-DITHIOCARBAMATE WHICH COMPRISES REACTING N,N-TETRAMETHYLENE-DITHIOCARBAIC ACID WITH CROTONALDEHYDE AT A TEMPERATURE OF FROM ABOUT -10* TO ABOUT 0* C.
Claim 4
Dependent Claim
27 words
A PROCESS FOR PRODUCING ALPHA-METHYL-GAMMAKETOPROPYL - N,N - TETRAMETHYLENE-DITHIOCARBAMATE WHICH COMPRISES REACTING N,N-TETRAMETHYLENE-DITHIOCARBAIC ACID WITH CROTONALDEHYDE AT A TEMPERATURE OF FROM ABOUT -10* TO ABOUT 0* C.
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) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |