Patent US3744944A successfully refreshed from Google Patents.
Patent US3244285A successfully refreshed from Google Patents.
US3244285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enforced operation treatment tank
Assignee: Individual
•
Filing: 1962-10-24
•
Granted: 1966-04-05
•
Expires: 1982-10-24
Abstract
No abstract record available.
Inventors
- 👤 Robert D Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:26
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A DEVICE FOR TREATING LIQUIDS COMPRISING A TANK HAVING AN AERATION COMPARTMENT AND A FINAL COMPARTMENT, INLET MEANS IN SAID TANK COMMUNICATING WITH SAID AERATION COMPARTMENT, A PARTITION IN SAID TANK BETWEEN THE COMPARTMENTS, AN OVERFLOW OPENING IN SAID PARTITION ADJACENT AN UPPER PORTION THEREOF COMMUNICATING SAID AERATION COMPARTMENT WITH SAID FINAL COMPARTMENT, AERATION MEANS IN SAID AERATION COMPARTMENT, AN OUTLET IN SAID TANK AN COMMUNICATION WITH SAID FINAL COMPARTMENT, MEANS IN SAID TANK OPERATING THE AERATION MEANS, CLOSURE MEANS ON SAID OUTLET, MEANS IN SAID DEVICE FOR OPENING AND CLOSING SAID CLOSURE MEANS ON SAID OUTLET, SAID OPENING AND CLOSING MEANS INCLUDING MEANS SPACED FROM AND ADAPTED TO BE ACTUATED BY SAID AERATION MEANS, SAID AERATION MEANS SAID MEANS SPACED FROM SAID AERATION MEANS, SAID OPENING AND CLOSING MEANS AND SAID CLOSURE MEANS BEING SO CONSTRUCTED AND ARRANGED SO THAT SAID CLOSURE MEANS IS HELD OPEN WHEN SAID AERATION MEANS ACTUATES SAID OPENING AND CLOSING MEANS AND HELD CLOSED WHEN SAID AERATION MEANS CEASES TO ACTUATE SAID OPENING AND CLOSING MEANS.
Claim 2
Independent Claim
172 words
A DEVICE FOR TREATING LIQUIDS COMPRISING A TANK HAVING AN AERATION COMPARTMENT AND A FINAL COMPARTMENT, INLET MEANS IN SAID TANK COMMUNICATING WITH SAID AERATION COMPARTMENT, A PARTITION IN SAID TANK BETWEEN THE COMPARTMENTS, AN OVERFLOW OPENING IN SAID PARTITION ADJACENT AN UPPER PORTION THEREOF COMMUNICATING SAID AERATION COMPARTMENT WITH SAID FINAL COMPARTMENT, AERATION MEANS IN SAID AERATION COMPARTMENT, AN OUTLET IN SAID TANK AN COMMUNICATION WITH SAID FINAL COMPARTMENT, MEANS IN SAID TANK OPERATING THE AERATION MEANS, CLOSURE MEANS ON SAID OUTLET, MEANS IN SAID DEVICE FOR OPENING AND CLOSING SAID CLOSURE MEANS ON SAID OUTLET, SAID OPENING AND CLOSING MEANS INCLUDING MEANS SPACED FROM AND ADAPTED TO BE ACTUATED BY SAID AERATION MEANS, SAID AERATION MEANS SAID MEANS SPACED FROM SAID AERATION MEANS, SAID OPENING AND CLOSING MEANS AND SAID CLOSURE MEANS BEING SO CONSTRUCTED AND ARRANGED SO THAT SAID CLOSURE MEANS IS HELD OPEN WHEN SAID AERATION MEANS ACTUATES SAID OPENING AND CLOSING MEANS AND HELD CLOSED WHEN SAID AERATION MEANS CEASES TO ACTUATE SAID OPENING AND CLOSING MEANS.
References Cited (Backward Citations)
US3126333A
Cited
US646929A
Cited
US729348A
Cited
US870027A
Cited
US1223427A
Cited
US1252099A
Cited
US2090384A
Cited
US2186371A
Cited
GB524858A
Cited
US2323437A
Cited
US2384972A
Cited
US2638444A
Cited
US3053390A
Cited
US2987186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |