Patent US3072593A successfully refreshed from Google Patents.
US3072593A
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Manufacture of molded articles from mixtures of oil shale and a solid olefin polymer
Assignee: Phillips Petroleum Co
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Filing: 1959-12-28
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Granted: 1963-01-08
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 John W Marx
- 👤 Harry W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:41
CPC Classifications
C; C08; C08K; C08K3/00; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L91/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS OF MAKING MOLDED ARTICLES WHICH CONSISTS ESSENTIALLY OF INTIMATELY ADMIXING OIL SHALE, CONTAINING AT LEAST ABOUT 15 GALLONS OF RECOVERABLE OIL PER TON OF OIL SHALE, AND A SOLID POLYMER OF A MONO 1-OLEFIN AND SUBJECTING SAID MIXTURE TO MOLDING PRESSURE AT A MOLDING TEMPERATURE IN THE RANGE OF ABOUT 250 TO ABOUT 400*F.
Claim 2
Dependent Claim
56 words
THE PROCESS OF MAKING MOLDED ARTICLES WHICH CONSISTS ESSENTIALLY OF INTIMATELY ADMIXING OIL SHALE, CONTAINING AT LEAST ABOUT 15 GALLONS OF RECOVERABLE OIL PER TON OF OIL SHALE, AND A SOLID POLYMER OF A MONO 1-OLEFIN AND SUBJECTING SAID MIXTURE TO MOLDING PRESSURE AT A MOLDING TEMPERATURE IN THE RANGE OF ABOUT 250 TO ABOUT 400*F.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |