Patent US2880519A successfully refreshed from Google Patents.
US2880519A
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Pelleting process and apparatus
Assignee: Phillips Petroleum Co
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Filing: 1955-10-03
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Granted: 1959-04-07
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Expires: 1975-10-03
Abstract
No abstract record available.
Inventors
- 👤 Lyle W Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:00
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; B; B01; B01J; B01J2/00; B01J37/00; B01J37/0009; F; F26; F26B; F26B5/00; F26B5/08; C01; C01P; C01P2006/00; C01P2006/10; Y; Y10; Y10S; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1157087A
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US1717178A
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US2283364A
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US2304382A
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US2457962A
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US2684290A
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US2744338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |