US3299170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha pinene copolymer as a tackifier for polymers
Assignee: SI Group Inc
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Filing: 1963-10-10
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Granted: 1967-01-17
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Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Carlos T Gonzenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:15
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; C08L2666/00; C08L2666/02; C08L2666/04; C08L65/00; C08L9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A MIXTURE OF ISOBUTYLENE-ISOPRENE COPOLYMER CONTAINING 85 TO 99.5% ISOBUTYLENE AND 0.5 TO 15% ISOPRENE AND AS A TACKIFYING AGENT THEREFOR A MINOR AMOUNT OF A COPOLYMER OF 1 TO 1.1 MOLES OF ALPHA PINENE AND 1.1 TO 1 MOLES OF DICYCLOPENTADIENE.
Claim 2
Dependent Claim
20 words
A MIXTURE ACCORDING TO CLAIM 2 INCLUDING AN ALKYLPHENOL-FORMALDEHYDE NOVOLAK CONTAINING 4 TO 12 CARBON ATOMS IN THE ALKYL GROUP.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |