Patent US3769346A successfully refreshed from Google Patents.
US3769346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diammonium salts and process for preparation
Assignee: Sanofi Aventis France
•
Filing: 1968-09-04
•
Granted: 1973-10-30
•
Expires: 1988-09-04
Abstract
Abstract NEW COMPOUNDS, N,N'' -DI-(2-ARYLOXYETHYL)-N,N,N'',N''TETRAMETHYL-ALPHA,OMEGA - POLYMETHYLENE DIAMMONIUM SALTS, USEFUL AS ANTIMICROBIAL AGENTS, AND A PROCESS FOR THE PREPARATION THEREOF ARE DISCLOSED.
Inventors
- 👤 J Boissier
- 👤 R Ratouis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:33
CPC Classifications
A; A01; A01N; A01N39/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |