US3642879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-(vinylbenzyl)isothiouronium salts
Assignee: Dow Chemical Co
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Filing: 1965-02-09
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Granted: 1972-02-15
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Expires: 1985-02-09
Abstract
Abstract S-(VINYLBENZYL)ISOTHIOURONIUM COMPOUNDS OF THE GENERAL FORMULA ((+)NH2=C(-NH2)-S-CH2-),(H2C=CH-),(X)N,Y-BENZENE Z(-) WHEREIN X AND Y ARE CONVENTIONL SUBSTITUENTS AND N IS 0-3. THE COMPOUNDS HAVE BIOLOGICAL USES AND ARE MONOMERS TO BE POLYMERIZED.
Inventors
- 👤 David P Sheetz
- 👤 Edwin C Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:52
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/06; C07C335/10; C07C335/12
Claims Analysis
Total Claims: 0
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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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |