Patent US2647100A successfully refreshed from Google Patents.
US2647100A
Expired / Lapsed
US
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Polyvinyl ether adhesive substance for plaster coatings and method of making the same
Assignee: Scholl Manufacturing Co Inc
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Filing: 1950-04-27
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Granted: 1953-07-28
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Expires: 1970-04-27
Abstract
No abstract record available.
Inventors
- 👤 Salditt Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:08
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF PREPARING AN ADHESIVE COATING COMPOSITION, WHICH COMPRISES PROVIDING A RELATIVELY LOW MOLECULAR WEIGHT POLYMER OF A POLYVINYL ALKYL ETHER AT A TEMPERATURE SUFFICIENT TO LIQUEFY THE SAME; AND DISSOLVING IN SAID LIQUEFIED POLYMER, WHILE IT IS MAINTAINED AT SAID TEMPERATURE, A RELATIVELY HIGH MOLECULAR WEIGHT POLYMER OF A POLYVINYL ALKYL ETHER THAT IS NORMALLY SOLID AT SAID TEMPERATURE.
Claim 2
Independent Claim
61 words
A METHOD OF PREPARING AN ADHESIVE COATING COMPOSITION, WHICH COMPRISES PROVIDING A RELATIVELY LOW MOLECULAR WEIGHT POLYMER OF A POLYVINYL ALKYL ETHER AT A TEMPERATURE SUFFICIENT TO LIQUEFY THE SAME; AND DISSOLVING IN SAID LIQUEFIED POLYMER, WHILE IT IS MAINTAINED AT SAID TEMPERATURE, A RELATIVELY HIGH MOLECULAR WEIGHT POLYMER OF A POLYVINYL ALKYL ETHER THAT IS NORMALLY SOLID AT SAID TEMPERATURE.
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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) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |