Patent US3324075A successfully refreshed from Google Patents.
US3324075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for compounding rubber
Assignee: PQ Corp
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Filing: 1964-10-07
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Granted: 1967-06-06
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Expires: 1984-10-07
Abstract
No abstract record available.
Inventors
- 👤 Burak Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS OF COMPOUNDING A RUBBER MIX CONTAINING A REINFORCING AGENT SELECTED FROM THE GROUP CONSISTING OF SILICA AND SILICATE, IN WHICH PROCESS THE VISCOSITY OF THE MIX IS REDUCED BY THE INCLUSION THEREIN OF FROM 2 TO 25% BY WEIGHT BASED ON THE WEIGHT OF THE SAID REINFORCING AGENT OF AN ORGANIC SILICATE ESTER.
Claim 2
Dependent Claim
55 words
A PROCESS OF COMPOUNDING A RUBBER MIX CONTAINING A REINFORCING AGENT SELECTED FROM THE GROUP CONSISTING OF SILICA AND SILICATE, IN WHICH PROCESS THE VISCOSITY OF THE MIX IS REDUCED BY THE INCLUSION THEREIN OF FROM 2 TO 25% BY WEIGHT BASED ON THE WEIGHT OF THE SAID REINFORCING AGENT OF AN ORGANIC SILICATE ESTER.
References Cited (Backward Citations)
BE536033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |