Patent US2987435A successfully refreshed from Google Patents.
US2987435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Germicidal compositions
Assignee: Lever Brothers Co
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Filing: 1958-08-06
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Granted: 1961-06-06
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Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Davies Thomas Gwyn
- 👤 Wedderburn Doreen Lois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:01
CPC Classifications
A; A01; A01N; A01N25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCESS OF CLEANING AND DISINFECTING A MATERIAL WHICH COMPRISES THE STEPS OF CONTACTING SAID MATERIAL WITH A SOLUTION OF SODIUM HYPOCHLORITE CONTAINING FROM 0.45% TO ABOUT 5% OF AVAILABLE CHLORINE AND THEREAFTER CONTACTING SAID MATERIAL WITH AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 0.05% TO ABOUT 5.0% BY WEIGHT OF BENZALKONIUM CHLORIDE.
Claim 2
Dependent Claim
52 words
A PROCESS OF CLEANING AND DISINFECTING A MATERIAL WHICH COMPRISES THE STEPS OF CONTACTING SAID MATERIAL WITH A SOLUTION OF SODIUM HYPOCHLORITE CONTAINING FROM 0.45% TO ABOUT 5% OF AVAILABLE CHLORINE AND THEREAFTER CONTACTING SAID MATERIAL WITH AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 0.05% TO ABOUT 5.0% BY WEIGHT OF BENZALKONIUM CHLORIDE.
References Cited (Backward Citations)
US2320280A
Cited
US2263948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |