US2467920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of gasoline
Assignee: Shell Development Co
•
Filing: 1946-08-13
•
Granted: 1949-04-19
•
Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 Hervey H Voge
- 👤 Bernard S Greensfelder
- 👤 Norman E Peery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:12
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/10; C10G2400/00; C10G2400/02
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) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |