USRE27326E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trunnion valve for continuous rotary filter
Assignee: —
•
Filing: 1969-10-01
•
Granted: 1972-04-11
•
Expires: 1989-10-01
Abstract
Abstract IMPROVED TRUNNION VALVE FOR ROTARY FILTERS PROVIDING A BRIDGE PLATE ASSEMBLY HAVING SIMPLE AND COMPACT MEANS FOR ADJUSTING THE BRIDGE BLOCKS FROM THE OUTSIDE, THEREBY VARYING THE EXTENT AND LOCATION OF RESPECTIVE OPERATING ZONES OF THE FILTRATION CYCLE WITHOUT NECESSITATING THE DISMOUNTING OF THE VALVE.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/80; B01D33/82; B01D33/06; B01D2201/00; B01D2201/16
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |