US2416022A
Expired / Lapsed
US
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Alkylation process
Assignee: Phillips Petroleum Co
•
Filing: 1943-03-20
•
Granted: 1947-02-18
•
Expires: 1963-03-20
Abstract
No abstract record available.
Inventors
- 👤 Walter A Schulze
- 👤 Jr Joseph P Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:08
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/067; C07C15/073; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2523/00; C07C2523/08; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1747604A
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US2115884A
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US2242960A
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US2373062A
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US2360358A
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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) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |