US3256368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic resins as tackifiers for ethylene-propylene rubbers
Assignee: Union Carbide Corp
•
Filing: 1963-01-11
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Granted: 1966-06-14
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Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Anthony C Soldatos
- 👤 Allison S Burhans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:07
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/04; C08G8/08; C08L; C08L23/00; C08L23/02; C08L23/16; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A COMPOSITION COMPRISING AN ETHYLENE-PROPYLENE RUBBER AND A TACKIFYING AMOUNT OF A FUSIBLE, NON-HET HARDENABLE, NOVOLAK RESIN OF FORMALDEHYDE AND A PHENOL HAVING THE FORMULA
Claim 2
Dependent Claim
25 words
A COMPOSITION COMPRISING AN ETHYLENE-PROPYLENE RUBBER AND A TACKIFYING AMOUNT OF A FUSIBLE, NON-HET HARDENABLE, NOVOLAK RESIN OF FORMALDEHYDE AND A PHENOL HAVING THE FORMULA
References Cited (Backward Citations)
US2659706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |