US3229854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water conditioning system
Assignee: Union Tank Car Co
•
Filing: 1963-06-05
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Granted: 1966-01-18
•
Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Turnquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:40
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; Y; Y10; Y10T; Y10T137/00; Y10T137/4891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A METERING DEVICE COMPRISING A BODY MEMBER HAVING A METERING CHAMBER THEREIN TO RECEIVE LIQUID FROM A RESERVOIR CHAMBER, SAID METERING CHAMBER HAVING A FLOATABLE VALVE MEANS THEREIN, SAID BODY MEMBER HAVING AN OUTLET PASSAGEWAY COMMUNICATING WITH SAID METERING CHAMBER, SAID OUTLET PASSAGEWAY HAVING A NORMALLY CLOSED VALVE MEANS THEREIN OPENABLE UNDER A PREDETERMINED PRESSURE DIFFERENTIAL, SAID VALVE MEANS PREVENTING LIQUID FROM
Claim 2
Dependent Claim
62 words
A METERING DEVICE COMPRISING A BODY MEMBER HAVING A METERING CHAMBER THEREIN TO RECEIVE LIQUID FROM A RESERVOIR CHAMBER, SAID METERING CHAMBER HAVING A FLOATABLE VALVE MEANS THEREIN, SAID BODY MEMBER HAVING AN OUTLET PASSAGEWAY COMMUNICATING WITH SAID METERING CHAMBER, SAID OUTLET PASSAGEWAY HAVING A NORMALLY CLOSED VALVE MEANS THEREIN OPENABLE UNDER A PREDETERMINED PRESSURE DIFFERENTIAL, SAID VALVE MEANS PREVENTING LIQUID FROM
References Cited (Backward Citations)
US1698890A
Cited
US1905726A
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US2627503A
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US3039655A
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US2895652A
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US3049266A
Cited
US3072302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |