US3342902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesive having pressure sensitivity comprising atactic polypropylene, ethylene-vinyl acetate copolymer, and a polyterpene
Assignee: Sunoco Inc
•
Filing: 1965-07-21
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Granted: 1967-09-19
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Melvin E Peterkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:09
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/10; C09J123/12; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A THERMOPLASTIC HOT MELT ADHESIVE COMPOSITION COMPRISING A HOMOGENEOUS MIXTURE OF 74 TO 82 WT. PERCENT ATACTIC POLYPROPYLENE HAVING A MOLECULAR WEIGHT OF 16,000 TO 20,000, 2 TO 9 WT. PERCENT ETHYLENE-VINYL ACETATE COPOLYMER RESIN HAVING A RING AND BALL MELT POINT OF ABOUT 220*F. TO 270*F. AND CONTAINING ABOUT 18 TO 34 WEIGHT PERCENT VINYL ACETATE AND 9 TO 18 WT. PERCENT OF A TERPENE RESIN HAVING A MOLECULAR WEIGHT OF ABOUT 1200.
Claim 2
Dependent Claim
74 words
A THERMOPLASTIC HOT MELT ADHESIVE COMPOSITION COMPRISING A HOMOGENEOUS MIXTURE OF 74 TO 82 WT. PERCENT ATACTIC POLYPROPYLENE HAVING A MOLECULAR WEIGHT OF 16,000 TO 20,000, 2 TO 9 WT. PERCENT ETHYLENE-VINYL ACETATE COPOLYMER RESIN HAVING A RING AND BALL MELT POINT OF ABOUT 220*F. TO 270*F. AND CONTAINING ABOUT 18 TO 34 WEIGHT PERCENT VINYL ACETATE AND 9 TO 18 WT. PERCENT OF A TERPENE RESIN HAVING A MOLECULAR WEIGHT OF ABOUT 1200.
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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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |