US3337531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbiologically active quaternary ammonium compounds
Assignee: Millmaster Onyx Corp
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Filing: 1964-04-15
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Granted: 1967-08-22
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Reginald L Wakeman
- 👤 Joseph F Coates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:28
CPC Classifications
C; C08; C08B; C08B15/00; C08B15/05; C08B15/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A MICROBIOLOGICALLY ACTIVE QUATERNARY AMMONIUM CELLULOSE SULFATE HAVING A DEGREE OF SUBSTITUTION OF ABOUT 0.55 TO 3, AND WHEREIN THE QUATERNARY AMMONIUM CATION HAS AT LEAST ONE ALKYL GROUP OF FROM 8 TO 22 CARBON ATOMS ATTACHED TO THE NITROGEN AND POSSESSES A PHENOL COEFFICIENT OF AT LEAST 100 WITH RESPECT TO STAPHYLOCOCCUS AUREUS AND SALMONELLA TYPHOSA AT 20*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |