Patent US2522468A successfully refreshed from Google Patents.
Patent US3231509A successfully refreshed from Google Patents.
US3231509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slimicidal composition and method
Assignee: Veolia WTS USA Inc
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Filing: 1964-06-11
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Granted: 1966-01-25
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Bernard F Shema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:01
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AS A NOVEL COMPOSITION OF MATTER, A MIXTURE OF FROM 10 TO 90 PERCENT BY WEIGHT OF A COMPOUND OF THE CLASS CONSISTING OF BIS-(TRICHLOROMETHYL)-SSULFONE AND BIS(TRIBOMOMETHYL)-SULFONE, AND FROM 90 TO 10 PERCENT BY WEIGHT OF N-ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE IN WHICH SAID ALKYL HAS A CARBON CHAIN LENGTH OF BETWEEN C8 AND C20.
Claim 2
Dependent Claim
55 words
AS A NOVEL COMPOSITION OF MATTER, A MIXTURE OF FROM 10 TO 90 PERCENT BY WEIGHT OF A COMPOUND OF THE CLASS CONSISTING OF BIS-(TRICHLOROMETHYL)-SSULFONE AND BIS(TRIBOMOMETHYL)-SULFONE, AND FROM 90 TO 10 PERCENT BY WEIGHT OF N-ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE IN WHICH SAID ALKYL HAS A CARBON CHAIN LENGTH OF BETWEEN C8 AND C20.
References Cited (Backward Citations)
US2692231A
Cited
US2959517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |