US3053680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding compositions
Assignee: Phillips Petroleum Co
•
Filing: 1960-04-01
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Granted: 1962-09-11
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Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Harry W Parker
- 👤 John W Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:55
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE PROCESS OF MAKING MOLDED ARTICLES WHICH COMPRISES INITIMATELY ADMIXING A MEASURABLE AMOUNT OF FINELY DIVIDED SULFUR SUFFICIENT TO IMPROVE THE CHARACTERISTICS OF HARDNESS AND MACHINABILITY TO THE MOLDED ARTICLE AND FINELY DIVIDED OIL SHALE, CONTAINING AT LEAST ABOUT 15 GALLONS OF AVAILABLE OIL PER TON OF OIL SHALE, AND SUBJECTING THE MIXTURE TO A TEMPERATURE IN THE RANGE OF ABOUT 250 TO ABOUT 400*F. AND TO A MOLDILNG PRESSURE OF AT OF THE OIL SHALE AND THE SULFUR.
Claim 2
Dependent Claim
79 words
THE PROCESS OF MAKING MOLDED ARTICLES WHICH COMPRISES INITIMATELY ADMIXING A MEASURABLE AMOUNT OF FINELY DIVIDED SULFUR SUFFICIENT TO IMPROVE THE CHARACTERISTICS OF HARDNESS AND MACHINABILITY TO THE MOLDED ARTICLE AND FINELY DIVIDED OIL SHALE, CONTAINING AT LEAST ABOUT 15 GALLONS OF AVAILABLE OIL PER TON OF OIL SHALE, AND SUBJECTING THE MIXTURE TO A TEMPERATURE IN THE RANGE OF ABOUT 250 TO ABOUT 400*F. AND TO A MOLDILNG PRESSURE OF AT OF THE OIL SHALE AND THE SULFUR.
References Cited (Backward Citations)
US2706160A
Cited
US2900269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |