Patent US2647145A successfully refreshed from Google Patents.
US2647145A
Expired / Lapsed
US
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Tetraethylthiuram disulfide derivatives
Assignee: Wyeth Canada Inc
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Filing: 1949-09-02
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Granted: 1953-07-28
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Expires: 1969-09-02
Abstract
No abstract record available.
Inventors
- 👤 Hald Jens Gunnar
- 👤 Gad Inger Grete
- 👤 Deans Sidney Alfred Vindin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:07
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/14; C07C333/30; C07C333/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A NEW COMPOSITION OF MATTER HAVING THE GENERAL EMPIRICAL FORMULA (C2H5)2NCS2-)2.2CX4 WHEREIN X IS HALOGEN.
Claim 2
Dependent Claim
15 words
A NEW COMPOSITION OF MATTER HAVING THE GENERAL EMPIRICAL FORMULA (C2H5)2NCS2-)2.2CX4 WHEREIN X IS HALOGEN.
Claim 3
Dependent Claim
44 words
A PROCESS FOR THE MANUFACTURE OF PSEUDOMORPHOUS TETRAETHYLTHIURAM DISULPHIDE COMPRISING HEATING TO REACTING TEMPERATURE A MIXTURE OF CRYSTALLINE TETRAETHYLTHIURAM DISULPHIDE WITH A CARBON TETRAHALIDE TO FROMA COMPLEX CONSISTING OF ONE MOLECULE OF TETRAETHYLTHIURAM DISULPHIDE AND TWO MOLECULES OF CARBON TETRAHALIDE, DECOMMORPH AFTER SAID COMPLEX.
Claim 4
Dependent Claim
44 words
A PROCESS FOR THE MANUFACTURE OF PSEUDOMORPHOUS TETRAETHYLTHIURAM DISULPHIDE COMPRISING HEATING TO REACTING TEMPERATURE A MIXTURE OF CRYSTALLINE TETRAETHYLTHIURAM DISULPHIDE WITH A CARBON TETRAHALIDE TO FROMA COMPLEX CONSISTING OF ONE MOLECULE OF TETRAETHYLTHIURAM DISULPHIDE AND TWO MOLECULES OF CARBON TETRAHALIDE, DECOMMORPH AFTER SAID COMPLEX.
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) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |