US3795704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-microbially active surface-active compounds
Assignee: Hoechst AG
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Filing: 1972-03-01
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Granted: 1974-03-05
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Expires: 1992-03-01
Abstract
Abstract AMPHOLYTIC COMPOUNDS OF THE FORMULA I R1-N(-R2)-(CH2)X-NH-R3 IN WHICH R1 IS A LIPOPHILIC GROUP, X IS 2 OR 3, ONE OF THE RADICALS R2 AND R3 STANDS FOR A MOIETY OF THE FORMULA II H2N-CO-CH2-CH(-COO-Y)- AND THE OTHER ONE STANDS FOR HYDROGEN OR ALSO FOR THE MOIETY OF THE FORMULA II, AND Y IS HYDROGEN OR AN ALKALI METAL ION, AND THE USE OF THESE AMPHOLYTIC COMPOUNDS AS ANTI-MICROBIALLY ACTIVE SURFACE-ACTIVE SUBSTANCES.
Inventors
- 👤 H Diery
- 👤 H Buecking
- 👤 K Seeger
- 👤 G Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:18
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |