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US2702780A Expired / Lapsed US ⏱️ 0.0 years remaining

Measuring dispensing sheet for germicides and process of forming same

Assignee: JACK I LE VANT
•
Filing: 1950-10-10
•
Granted: 1955-02-22
•
Expires: 1970-10-10
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Abstract

No abstract record available.

Inventors

  • 👤 Louis L Lerner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:06
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/18

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 180 words
A GERMICIDE-MEASURING DISPENSER CONSISTING IN ADDITION TO ANY CONTENT OF WATER, ESSENTIALLY AND SUBSTANTIALLY ENTIRELY OF (A) A WATER-INSOLUBLE WATER-ABSORBENT CARRIER SHEET OF MATERIAL HAVING AVERAGE UNIFORMITY OF STRUCTURE THE MICROSCOPIC SURFACE OF THE SHEET BEING ENTIRELY THE SURFACE OF HYDROPHILIC WATER-INSOLUBLE CELLULOSIC GEL, AND (B) WATER-SOLUBLE SUBSTANCE CONSISTING ESSENTIALLY OF NONANIONIC SURFACE-ACTIVE MATERIAL CARRIED IN SUBSTANTIALLY UNIFORM DISTRIBUTION PER UNIT AREA OF SHEET BY AND ON SAID SURFACE, ESSENTIALLY INCLUDING GERMICIDAL CATIONIC QUATERNARY AMMONIUM SALT ONLY IN PART SUBSTANTIVELY ATTACHED TO SAID SURFACE BY THAT CHARACTER OF ORIENTATION EFFECTED IN WATER SOLUTION, SAID GERMICIDAL SALT BEING PRESENT IN QUAN TITY OF AT LEAST TWO-THIRDS OF ALL THE CATIONIC SURFACE-ACTIVE MATERIAL PRESENT, THE EXCESS OF SAID GERMICIDAL SALT OVER THAT PORTION OF IT WHICH IS SUBSTANTIVELY HELD BY SAID SUR FACE BEING RELEASABLE ON IMMERSION OF THE SHEET IN WATER, WHEREBY A GIVEN UNIT AREA OF SHEET MAY BE IMMERSED IN A PREDETERMINED VOLUME OF WATER TO PROVIDE A GERMICIDAL SOLUTION, AND THE CARRIER SHEET MAY BE USED AS AN APPLICATOR OF SAID SOLUTION WITHOUT REDUCTION OF THE GERMICIDAL CONCENTRATION.
Claim 2
Dependent Claim 180 words
A GERMICIDE-MEASURING DISPENSER CONSISTING IN ADDITION TO ANY CONTENT OF WATER, ESSENTIALLY AND SUBSTANTIALLY ENTIRELY OF (A) A WATER-INSOLUBLE WATER-ABSORBENT CARRIER SHEET OF MATERIAL HAVING AVERAGE UNIFORMITY OF STRUCTURE THE MICROSCOPIC SURFACE OF THE SHEET BEING ENTIRELY THE SURFACE OF HYDROPHILIC WATER-INSOLUBLE CELLULOSIC GEL, AND (B) WATER-SOLUBLE SUBSTANCE CONSISTING ESSENTIALLY OF NONANIONIC SURFACE-ACTIVE MATERIAL CARRIED IN SUBSTANTIALLY UNIFORM DISTRIBUTION PER UNIT AREA OF SHEET BY AND ON SAID SURFACE, ESSENTIALLY INCLUDING GERMICIDAL CATIONIC QUATERNARY AMMONIUM SALT ONLY IN PART SUBSTANTIVELY ATTACHED TO SAID SURFACE BY THAT CHARACTER OF ORIENTATION EFFECTED IN WATER SOLUTION, SAID GERMICIDAL SALT BEING PRESENT IN QUAN TITY OF AT LEAST TWO-THIRDS OF ALL THE CATIONIC SURFACE-ACTIVE MATERIAL PRESENT, THE EXCESS OF SAID GERMICIDAL SALT OVER THAT PORTION OF IT WHICH IS SUBSTANTIVELY HELD BY SAID SUR FACE BEING RELEASABLE ON IMMERSION OF THE SHEET IN WATER, WHEREBY A GIVEN UNIT AREA OF SHEET MAY BE IMMERSED IN A PREDETERMINED VOLUME OF WATER TO PROVIDE A GERMICIDAL SOLUTION, AND THE CARRIER SHEET MAY BE USED AS AN APPLICATOR OF SAID SOLUTION WITHOUT REDUCTION OF THE GERMICIDAL CONCENTRATION.

References Cited (Backward Citations)

US1353954A Cited
CH23237A Cited
US2063218A Cited
US2255694A Cited
US2346632A Cited
US2349152A Cited
CH236877A Cited
US2436673A Cited
US2474306A Cited
US2390235A Cited
US2542909A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1958-02-21 1958-08-23 1959-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-02-21 1962-08-23 1963-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-02-21 1966-08-23 1967-02-22 $7700.00 Window Closed / Lapsed

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