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Patent US4140798A successfully refreshed from Google Patents.
US4140798A
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Method of inhibiting microorganisms
Assignee: Stepan Co
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Filing: 1977-12-12
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Granted: 1979-02-20
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Expires: 1997-12-12
Abstract
Abstract A method of inhibiting microorganisms by the application of a compound formed by the condensation of dimethylamine and epichlorohydrin in about equimolar proportions.
Inventors
- 👤 John J. Merianos
- 👤 Harold A. Green
- 👤 Alfonso N. Petrocci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:42
CPC Classifications
A; A01; A01N; A01N33/00; A01N33/02; A01N33/12; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61Q; A61Q11/00; A61Q17/00; A61Q17/005; C; C02; C02F; C02F1/00; C02F1/50; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A method of inhibiting microorganisms which comprises applying to said microorganisms an inhibitorily effective amount of a compound formed by the condensation of dimethylamine and epichlorohydrin in about a 1:1 molar ratio at a temperature of about 20° C. to about 30° C. for about 2 hours, and then heating the condensate at a temperature of between about 40° C. to about 90° C. for a period of between about 2 to about 12 hours.
Claim 2
Independent Claim
75 words
A method of inhibiting microorganisms which comprises applying to said microorganisms an inhibitorily effective amount of a compound formed by the condensation of dimethylamine and epichlorohydrin in about a 1:1 molar ratio at a temperature of about 20° C. to about 30° C. for about 2 hours, and then heating the condensate at a temperature of between about 40° C. to about 90° C. for a period of between about 2 to about 12 hours.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |