US2970974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesives containing polyvinyl methyl ether
Assignee: GAF Chemicals Corp
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Filing: 1956-12-24
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Granted: 1961-02-07
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Charles P Albus
- 👤 Julian L Azorlosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
C; C09; C09J; C09J129/00; C09J129/10; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A HOT MELT ADHESIVE COMPATIBLE COMPOSITION CONSISTING ESSENTIALLY OF FROM 12.5 TO 75% BY WEIGHT POLYVINYL METHYL ETHER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 2000 TO 10,000 AND FROM 25 TO 87.5% OF A MODI FYING AGENT SELECTED FROM THE GROUP CONSISTING OF ROSIN AND ESTER DERIVATIVES THEREOF SAID MODIFYING AGENT HAVING A MELTING POINT ABOUT ABOUT 75* C.
Claim 2
Dependent Claim
60 words
A HOT MELT ADHESIVE COMPATIBLE COMPOSITION CONSISTING ESSENTIALLY OF FROM 12.5 TO 75% BY WEIGHT POLYVINYL METHYL ETHER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 2000 TO 10,000 AND FROM 25 TO 87.5% OF A MODI FYING AGENT SELECTED FROM THE GROUP CONSISTING OF ROSIN AND ESTER DERIVATIVES THEREOF SAID MODIFYING AGENT HAVING A MELTING POINT ABOUT ABOUT 75* C.
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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |