Patent US2467149A successfully refreshed from Google Patents.
US2467149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handling finely divided materials
Assignee: Standard Oil Development Co
•
Filing: 1942-09-05
•
Granted: 1949-04-12
•
Expires: 1962-09-05
Abstract
No abstract record available.
Inventors
- 👤 John C Munday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:13
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1577534A
Cited
DE533037C
Cited
US2231424A
Cited
US2290580A
Cited
US2326166A
Cited
US2286447A
Cited
US2253486A
Cited
US2296722A
Cited
US2247126A
Cited
US2296386A
Cited
US2252740A
Cited
US2304827A
Cited
US2349575A
Cited
US2323899A
Cited
US2339874A
Cited
US2367281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |