US3028300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Germicidal compositions and methods for preparing the same
Assignee: WEST LABORATORIES Inc
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Filing: 1960-09-13
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Granted: 1962-04-03
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Expires: 1980-09-13
Abstract
No abstract record available.
Inventors
- 👤 Cantor Abraham
- 👤 Murray W Winicov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:04
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/06; C08F26/10; A; A01; A01N; A01N59/00; A01N59/12; C08K; C08K3/00; C08K3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE PROCESS FOR DIRECTLY PREPARING AN IODINE GERMICIDE OF ENHANCED IODINE COMPLEXING THAT COMPRISES COMBINING POLY(N-VINYL-2-PYRROLIDONE) WITH IODINE AND AN IODIDE SELECTED FROM THE CLASS CONSISTING OF HI AND ALKALI METAL IODIDES IN PROPORTIONS TO PROVIDE A PVP/I2 RATIO OF AT LEAST 3 AND AN I-/I2 RATIO SUFFICIENTLY GREATER THAN 0.5 SO THAT AN AQUEOUS SOLUTION OF SAID GERMICIDE OF 1% IODINE CONCENTRATION EXHIBITS AN ENHANCEMENT IN EXCESS OF ABOUT 100 AND A VALUE IN EXCESS OF ABOUT 200 FOR DISTRIBUTION COEFFICIENT (D.C.) AS DETERMINED BY THE FORMULA:
Claim 2
Dependent Claim
88 words
THE PROCESS FOR DIRECTLY PREPARING AN IODINE GERMICIDE OF ENHANCED IODINE COMPLEXING THAT COMPRISES COMBINING POLY(N-VINYL-2-PYRROLIDONE) WITH IODINE AND AN IODIDE SELECTED FROM THE CLASS CONSISTING OF HI AND ALKALI METAL IODIDES IN PROPORTIONS TO PROVIDE A PVP/I2 RATIO OF AT LEAST 3 AND AN I-/I2 RATIO SUFFICIENTLY GREATER THAN 0.5 SO THAT AN AQUEOUS SOLUTION OF SAID GERMICIDE OF 1% IODINE CONCENTRATION EXHIBITS AN ENHANCEMENT IN EXCESS OF ABOUT 100 AND A VALUE IN EXCESS OF ABOUT 200 FOR DISTRIBUTION COEFFICIENT (D.C.) AS DETERMINED BY THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |