US3845216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slime control composition containing quaternary ammonium chloride and its use
Assignee: Veolia WTS USA Inc
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Filing: 1972-08-11
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Granted: 1974-10-29
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Expires: 1992-08-11
Abstract
Abstract 1. A METHOD FOR CONTROLLING THE GROWTH OF THE MICROORGANISM AEROBACTER AEROGENES IN AN AQUEOUS SYSTEM IN WHICH SAID MICROORGANISM IS FOUND WHICH COMPRISES ADDING TO SAID SYSTEM SO AS TO CONTACT SAID MICROORGANISM AN EFFECTIVE AMOUNT OF A COMBINATION COMPRISING B-BROMOB-NITROSTYRENE AND DIDECYLDIMETHYL AMMONIUM CHLORIDE, WHERE THE WEIGHT RATIO OF THE STYRENE TO THE CHLORIDE IS FROM 95% TO 5% TO ABOUT 4.5% TO 95%.
Inventors
- 👤 R Brink
- 👤 B Shema
- 👤 P Swered
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:11
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; A; A01; A01N; A01N35/00; A01N35/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD FOR CONTROLLING THE GROWTH OF THE MICROORGANISM AEROBACTER AEROGENES IN AN AQUEOUS SYSTEM IN WHICH SAID MICROORGANISM IS FOUND WHICH COMPRISES ADDING TO SAID SYSTEM SO AS TO CONTACT SAID MICROORGANISM AN EFFECTIVE AMOUNT OF A COMBINATION COMPRISING B-BROMOB-NITROSTYRENE AND DIDECYLDIMETHYL AMMONIUM CHLORIDE, WHERE THE WEIGHT RATIO OF THE STYRENE TO THE CHLORIDE IS FROM 95% TO 5% TO ABOUT 4.5% TO 95%.
Claim 2
Independent Claim
65 words
A METHOD FOR CONTROLLING THE GROWTH OF THE MICROORGANISM AEROBACTER AEROGENES IN AN AQUEOUS SYSTEM IN WHICH SAID MICROORGANISM IS FOUND WHICH COMPRISES ADDING TO SAID SYSTEM SO AS TO CONTACT SAID MICROORGANISM AN EFFECTIVE AMOUNT OF A COMBINATION COMPRISING B-BROMOB-NITROSTYRENE AND DIDECYLDIMETHYL AMMONIUM CHLORIDE, WHERE THE WEIGHT RATIO OF THE STYRENE TO THE CHLORIDE IS FROM 95% TO 5% TO ABOUT 4.5% TO 95%.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |