Patent US3609776A successfully refreshed from Google Patents.
US3609776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain stopper for plumbing fixtures
Assignee: Trane US Inc
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Filing: 1969-12-12
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Granted: 1971-10-05
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Expires: 1989-12-12
Abstract
Abstract COVERS A STOPPER MECHANISM FOR THE DRAIN PORT OF A PLUMBING FIXTURE, SUCH AS A LAVATORY. THE STOPPER MECHANISM INCLUDES A SKIRT MEMBER HAVING A PLURALITY OF ARMS, ONE OR MORE OF WHICH HAVE PROTRUDING FINGERS. THE DRAIN PORT OF THE PLUMBING FIXTURE HAS A TWO-TIER OPENING. BY MANIPULATING THE STOPPER MECHANISM, THE STOPPER MECHANISM MAY BE INSERTED INTO THE DRAIN PORT SO THAT THE FINGERS OF THE STOPPER STRUCTURE MAY BE BROUGHT INTO POSITION ON A SELECTED TIER IN THE OPENING OF THE DRAIN PORT SO AS TO MAINTAIN THE DRAIN PORT OPEN OR CLOSED AS DESIRED, OR, IF DESIRED, THE STOPPER MECHANISM MAY BE REMOVED FROM THE DRAIN PORT SO THAT IT MAY BE CLEANED
Inventors
- 👤 Ioakim Haldopoulos
- 👤 James Edward Niemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:46
CPC Classifications
A; A47; A47K; A47K1/00; A47K1/14
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |