US3280090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of catalyst residues from olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1962-02-19
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Granted: 1966-10-18
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jack S Scoggin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1812; B01J19/1837; B01J19/1862; B01J8/00; B01J8/005; C; C08; C08F; C08F6/00; C08F6/02; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA571762A
Cited
US2982763A
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US2783884A
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US3002961A
Cited
US2971951A
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US3066124A
Cited
US2996492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |