Patent US4049672A successfully refreshed from Google Patents.
US4049672A
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4-Methyl-5-imidazolylmethylthioethylamine and -S-methylisothiourea
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1976-03-17
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Granted: 1977-09-20
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Expires: 1996-03-17
Abstract
Abstract The compounds are heterocyclic thioalkyl-, aminoalkyl- and oxyalkylguanidines which are inhibitors of histamine activity, particularly inhibitors of H-2 histamine receptors.
Inventors
- 👤 Graham John Durant
- 👤 John Colin Emmett
- 👤 Charon Robin Ganellin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:16
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/70; C07D213/24; C07D213/28; C07D213/32; C07D213/36; C07D213/38; C07D213/63; C07D213/65; C07D213/72; C07D213/74; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D233/00; C07D233/54; C07D233/66; C07D233/84; C07D233/90; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12; C07D261/00; C07D261/02; C07D261/06; C07D261/08; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D263/46; C07D275/00; C07D275/02; C07D275/03; C07D277/00; C07D277/02; C07D277/20; C07D277/22; C07D277/26; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A compound of the formula: ##STR15##
Claim 2
Dependent Claim
6 words
A compound of the formula: ##STR15##
Claim 3
Dependent Claim
6 words
A compound of the formula: ##STR16##
Claim 4
Dependent Claim
6 words
A compound of the formula: ##STR16##
References Cited (Backward Citations)
DE2053175A1
Cited
US3736331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |