US3605135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain flusher
Assignee: Individual
•
Filing: 1969-09-11
•
Granted: 1971-09-20
•
Expires: 1989-09-11
Abstract
Abstract A DEVICE FOR UNCLOGGING DRAINS BY MEANS OF WATER UNDER PRESSURE INCLUDING A FLEXIBLE HOSE CONNECTIBLE AT ONE END THEREOF TO A SOURCE OF WATER UNDER PRESSURE AND TERMINATING ADJACENT ANOTHER END THEREOF IN A TAPERED SEAT BOUNDED BY A RADIALLY EXTENDING FLANGE. THE TAPERED SEAT AND FLANGE ARE ALTERNATIVELY ADAPTED TO BE EMPLOYED TO PROVIDE A FLUID SEAL FOR RELATIVELY NARROW AND RELATIVELY WIDE DRAIN OPENINGS, RESPECTIVELY, THE FLANGE IN EITHER CASE PROVIDING A CONVENIENT SURFACE AGAINST WHICH A USER MAY PLACE HIS HAND IN BEARING ENGAGEMENT FOR THE PURPOSE OF MAINTAINING THE DEVICE IN FLUID SEALING ENGAGEMENT WITH RESPECT TO THE DRAIN OPENING.
Inventors
- 👤 Louis P Tan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:17
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/304; E03C1/306
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |