US2360699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion process
Assignee: Shell Development Co
•
Filing: 1941-07-25
•
Granted: 1944-10-17
•
Expires: 1961-07-25
Abstract
No abstract record available.
Inventors
- 👤 Sumner H Mcallister
- 👤 Anderson John
- 👤 William E Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-10-17 | 1948-04-17 | 1948-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-10-17 | 1952-04-17 | 1952-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-10-17 | 1956-04-17 | 1956-10-17 | $7700.00 | Window Closed / Lapsed |