US3193099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monovalve filter
Assignee: Union Tank Car Co
•
Filing: 1961-08-30
•
Granted: 1965-07-06
•
Expires: 1981-08-30
Abstract
No abstract record available.
Inventors
- 👤 Soriente Alfonse Joseph
- 👤 Joseph H Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:51
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/48; B01D24/4869; B01D24/02; B01D24/10; B01D24/14; B01D24/46; B01D24/4631; B01D24/4636; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/7287; Y10T137/7306; Y10T137/7313
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A FILTERING APPARATUS COMPRISING A FILTER CHAMBER HAVING AN UPPER INLET SIDE AND A LOWER OUTLET SIDE, A STORAGE CHAMBER ABOVE SAID FILTER CHAMBER FOR STORING EFFLUENT, MEANS CONNECTING SAID STORAGE CHAMBER WITH SAID OUTLET SIDE OF SAID FILTER CHAMBER, SAID STORAGE CHAMBER RECEIVING SAID EFFLUENT FROM SAID OUTLET SIDE OF SAID FILTER CHAMBER TO RAISE THE LEVEL OF STORED EFFLUENT FROM A LOWER LEVEL TO AN UPPER LEVEL, PIPE MEANS COMMUNICATING WITH SAID INLET SIDE OF SAID FILTER CHAMBER, MEANS CONNECTING SAID PIPE MEANS TO A SOURCE OF LIQUID TO BE FILTERED, SERVICE OUTLET MEANS FOR SAID EFFLUENT, SAID SERVICE OUTLET MEANS COMMUNICATING WITH SAID STORAGE CHAMBER, THE HEIGHT OF SAID SERVICE OUTLET MEANS CONTROLLING THE UPPER LEVEL OF SAID EFFLUENT IN SAID STORAGE CHAMBER, SAID PIPE MEANS HAVING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |