US3615012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for purifying liquids particularly water
Assignee: Individual
•
Filing: 1969-10-07
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Granted: 1971-10-26
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Expires: 1989-10-07
Abstract
Abstract A DEVICE FOR REMOVING FLOATING DEBRIS FROM WATER RUNNING IN A CHANNEL, INCLUDING A GRATE OF INCLINED PARALLEL BARS, TWO PAIRS OF GEAR WHEELS, AND TWO PARALLEL CONTINUOUS CHAINS RUNNING OVER THE GEAR WHEELS AND EXTENDING LONGITUDINALLY OF THE BARS. THE DEVICE INCLUDES DRIVE MEANS FOR ROTATING THE GEAR WHEELS, AND A HORIZONTAL BEAM HAVING TEETH AFFIXED THERETO WHICH ARE ADAPTED TO ENGAGE BETWEEN THE BARS OF THE GRATE IN A RAKING POSITION TO CARRY SOLID IMPURITIES RETAINED AGAINST THE GRATE
Inventors
- 👤 Andre Verbandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:50
CPC Classifications
E; E02; E02B; E02B8/00; E02B8/02; E02B8/023; E02B8/026
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |