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
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Granted: 1955-02-22
•
Expires: 1970-10-10
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.
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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) | 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 |