US3888947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-biguanides
Assignee: Kemanord AB
•
Filing: 1972-05-18
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Granted: 1975-06-10
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Expires: 1992-05-18
Abstract
Abstract The invention provides, as new compounds, salts of certain bactericidally active bis-biguanides bases with sequestering amino-carboxylic acids, the compounds being useful as bactericides. The invention also provides compositions containing these salts; the compositions preferably incorporate quaternary ammonium compounds as solubilizing agents for the salts.
Inventors
- 👤 Ronald Arthur Stephenson
- 👤 Bente Lissy Laursen
- 👤 Ove Henning Mattsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
C; C07; C07C; C07C279/00; C07C279/20; C07C279/24; C07C279/26; C07C279/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A SALT SELECTED FROM THE GROUP CONSISTING OF: MONO-CHLORHEXIDINE NITRILOTRIACETATE, TRI(CHLORHEXIDINE) DI(DIETHYLENETRIAMINEPENTAACETATE) MONO-CHLORHEXIDINE N,N-DIHYDROXYETHYLAMINOACETATE, MONO-CHLORHEXIDINE HYDROXYETHYLETHYLENEDIAMINETRIACETATE, AND MONO-CHLORHEXIDINE DI(NHYDROXYETHYLETHYLENEDIAMINETRIACETATE).
Claim 2
Dependent Claim
19 words
A SALT SELECTED FROM THE GROUP CONSISTING OF: MONO-CHLORHEXIDINE NITRILOTRIACETATE, TRI(CHLORHEXIDINE) DI(DIETHYLENETRIAMINEPENTAACETATE) MONO-CHLORHEXIDINE N,N-DIHYDROXYETHYLAMINOACETATE, MONO-CHLORHEXIDINE HYDROXYETHYLETHYLENEDIAMINETRIACETATE, AND MONO-CHLORHEXIDINE DI(NHYDROXYETHYLETHYLENEDIAMINETRIACETATE).
References Cited (Backward Citations)
US3272863A
Cited
US3468898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |