US2698672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separator for separating solid particles from gasiform mixtures
Assignee: Standard Oil Development Co
•
Filing: 1952-10-15
•
Granted: 1955-01-04
•
Expires: 1972-10-15
Abstract
No abstract record available.
Inventors
- 👤 Harvey E W Burnside
- 👤 James W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:59
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/76; B04; B04C; B04C5/00; B04C5/02; B04C5/04; B04C5/12; B04C5/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE343587C
Cited
US471272A
Cited
US601355A
Cited
GB190404325A
Cited
GB218088A
Cited
FR653406A
Cited
US2385745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |