Patent US2460303A successfully refreshed from Google Patents.
US2460303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline manufacture
Assignee: Shell Development Co
•
Filing: 1942-01-29
•
Granted: 1949-02-01
•
Expires: 1962-01-29
Abstract
No abstract record available.
Inventors
- 👤 Sumner H Mcallister
- 👤 Anderson John
- 👤 Walter H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:25
CPC Classifications
C; C10; C10G; C10G63/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1989425A
Cited
US1914674A
Cited
DE559736C
Cited
US2180374A
Cited
US2268557A
Cited
US2227559A
Cited
US2330206A
Cited
US2375687A
Cited
US2388942A
Cited
US2404340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |