US2423045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid phase catalytic reactions of hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1943-09-04
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Granted: 1947-06-24
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Expires: 1963-09-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Passino
- 👤 John S Rearick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:01
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2/64; C07C2/66; C07C2/70; C07C4/00; C07C4/02; C07C4/06; C07C5/00; C07C5/22; C07C5/2206; C07C5/2226; C07C5/2246; C07C5/2253; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; C08; C08F; C08F10/00; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/11; C07C2527/12; C07C2527/1206; C07C2527/1213; C07C2527/125; C07C2527/126; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 0
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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) | 1950-06-23 | 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 |