US3790647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone treated phenolic polymer tackifier for ethylene propylene diene rubbers
Assignee: ISP Investments LLC
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Filing: 1972-03-28
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Granted: 1974-02-05
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Expires: 1992-03-28
Abstract
Abstract THE REACTION PRODUCTS OF OZONE AND A COMPOUND SELECTED FROM THE GROUP COMPRISING ALKYL SUBSTITUTED PHENOLACETYLENE RESINS, ALKYL SUBSTITUTED PHENOL-ALDHEYDE TYPE RESINS AND RESINS OF NATURAL ORIGIN, A PROCESS OF PREPARING SAME, AND A METHOD OF USE THEREFORE IN INCREASING THE BUILDING TACK IN E.P.D.M. (ETHYL PROPYLENE DIENE MONOMER) RUBBER.
Inventors
- 👤 K Kiss
- 👤 G Mills
- 👤 E Smolin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:41
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08L; C08L23/00; C08L23/02; C08L23/16; C08L61/00; C08L91/00; C08L2310/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |