Patent US2964447A successfully refreshed from Google Patents.
US2964447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer-metal process
Assignee: GAF Chemicals Corp
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Filing: 1956-04-10
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Granted: 1960-12-13
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Expires: 1976-04-10
Abstract
No abstract record available.
Inventors
- 👤 William A Hosmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:09
CPC Classifications
C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF PREPARING A WATER-SOLUBLE DETOXICATED COMPOUND WHICH COMPRISES MIXING TOGETHER A POLYVINYLPYRROLIDONE-IODINE COMPLEX, FORMED BY INTIMATELY MIXING TOGETHER POLYVINYLPYRROLIDONE AND ELEMENTAL IODINE AND THEN HEATING THE RESULTING MIXTURE TO ABOUT 100* C., WITH FROM 1 TO 2 MOLAR EQUIVALENTS, BASED ON THE AMOUNT OF AVAILABLE IODINE, OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF MERCURY, ANTIMONY AND BISMUTH, AND THEN HEATING THIS RESULTING MIXTURE TO A TEMPERATURE OF ABOUT 100* C. WHEREBY THERE IS FORMED A WATER-SOLUBLE PRODUCT CONTAINING POLYVINYLPYRROLIDONE, IODINE AND SAID HEAVY METAL.
Claim 2
Independent Claim
89 words
THE METHOD OF PREPARING A WATER-SOLUBLE DETOXICATED COMPOUND WHICH COMPRISES MIXING TOGETHER A POLYVINYLPYRROLIDONE-IODINE COMPLEX, FORMED BY INTIMATELY MIXING TOGETHER POLYVINYLPYRROLIDONE AND ELEMENTAL IODINE AND THEN HEATING THE RESULTING MIXTURE TO ABOUT 100* C., WITH FROM 1 TO 2 MOLAR EQUIVALENTS, BASED ON THE AMOUNT OF AVAILABLE IODINE, OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING OF MERCURY, ANTIMONY AND BISMUTH, AND THEN HEATING THIS RESULTING MIXTURE TO A TEMPERATURE OF ABOUT 100* C. WHEREBY THERE IS FORMED A WATER-SOLUBLE PRODUCT CONTAINING POLYVINYLPYRROLIDONE, IODINE AND SAID HEAVY METAL.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |