US2772247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-blocking adhesive composition containing polyethylene, tackifying resin, and a polyvinyl ester
Assignee: Primerica Inc
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Filing: 1951-11-20
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Granted: 1956-11-27
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Expires: 1971-11-20
Abstract
No abstract record available.
Inventors
- 👤 George O Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
C; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2666/00; C08L2666/02; C08L93/00; C08L93/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A NON-BLOCKING ADHESIVE COMPOSITION COMPRISING FROM ABOUT 2% TO 10% BY WEIGHT OF A POLYETHYLENE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 4,000 TO ABOUT 10,000, FROM ABOUT 17% TO 43% BY WEIGHT OF A TACKIFYING RESIN SELECTED FROM THE GROUP CONSISTING OF A ROSIN, A ROSIN POLYMER, A POLYHDRIC ALKANOL ESTER OF ROSIN, A THERMOPLASTIC TERPENE-PHANOL RESIN AND MIXTURES THEREOF, AND ABOUT FROM 47% TO 81% BY WEIGHT OF A POLYVINYL ESTER OF A LOWER MOLECULAR WEIGHT ALKANOIC ACID HAVING A VISCOSITY OF FROM ABOUT 13 TO 28 SECONDS AS MEASURED BY A 20% SOLUTION IN ACETONE AT 25* C. WITH A NO. 4 FORD CUP, SAID ALKANOIC ACID HAVING FROM 2 TO 4 CARBON ATOMS.
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |