US3193360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for propylene polymerization
Assignee: Phillips Petroleum Co
•
Filing: 1961-05-31
•
Granted: 1965-07-06
•
Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jack S Scoggin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:08
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/26; B01J8/00; B01J8/0015; B01J8/003; B01J8/18; B01J8/20; B01J8/22; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00176; B01J2208/00247; B01J2208/00539; C; C08; C08F; C08F110/00; C08F110/04; C08F110/06; Y; Y10; Y10S; Y10S526/00; Y10S526/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126365A
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US2085524A
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US2484384A
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US2755324A
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US2904409A
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US3002961A
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US3023203A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |