US3786058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain bis(pyridinium quaternary salts)
Assignee: Imperial Chemical Industries Ltd
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Filing: 1972-03-14
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Granted: 1974-01-15
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Expires: 1992-03-14
Abstract
Abstract THE DISCLOSURE RELATES TO NOVEL BIS(PYRIDINIUM QUATERNARY SALTS), A PROCESS FOR THEIR MANUFACTURE, COMPOSITIONS CONTAINING THEM, AND A METHOD OF PREVENTING THE GROWTH OF, OR KILLING, BACTERIA BY APPLYING ONE OF THE NOVEL PYRIDINIUM SALTS TO A BACTERIALLY INFECTED ENVIRONMENT.
Inventors
- 👤 P Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/86; C07D213/87; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4926; A61Q; A61Q11/00; C07D213/06; C07D213/16; C07D213/24; C07D213/36; C07D213/40; C07D213/62; C07D213/63; C07D213/65; C07D213/72; C07D213/74; C07D213/75; C07D213/81
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |