Patent US3010151A successfully refreshed from Google Patents.
US3010151A
Expired / Lapsed
US
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Modified double-barrel extrusion apparatus
Assignee: Phillips Petroleum Co
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Filing: 1959-11-30
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Granted: 1961-11-28
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Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Travis R Dickinson
- 👤 Robert R Gloyna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:26
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/224; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/68; B29C48/6801; B29C48/682; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23948E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |