Patent US2422798A successfully refreshed from Google Patents.
US2422798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon reactions in the presence of aluminum halide-olefinic ketone complexes
Assignee: Universal Oil Products Co
•
Filing: 1945-07-30
•
Granted: 1947-06-24
•
Expires: 1965-07-30
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:39
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; B; B01; B01J; B01J27/00; B01J27/06; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C2/64; C07C2/66; C07C2/68; C07C2/86; C07C2/861; C07C4/00; C07C5/2206; C07C5/2226; C07C5/2246; C07C5/2253; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |