Patent US6527810B2 successfully refreshed from Google Patents.
US3308484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink strainer
Assignee: Kohler Co
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Filing: 1964-05-05
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Granted: 1967-03-14
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Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Povalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:20
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/264
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A SINK STRAINER, THE COMBINATION COMPRISING A STRAINER BODY HAVING A CUP PORTION, A CIRCUMFERENTIAL SUPPORTING FLANGE EXTENDING LATERALLY OUTWARD FROM ITS TOP TO BEAR DOWNWARD AGAINST AN UPPER SURFACE OF A SINK, A CONSTRICTED THROAT PORTION AT ITS LOWER END ADAPTED FOR CONNECTION TO A TAILPIECE, AND A RETAINING SHOULDER ON ITS LATERAL SURFACE; AND A CAM LOCK RING ADAPTED TO FIT AROUND SAID STRAINER BODY AND TO BEAR UPWARD AGAINST A LOWER SURFACE OF SAID SINK, AND HAVING A CAM SURFACE ENGAGEABLE WITH SAID RETAINING SHOULDER ON SAID STRAINER BODY, TO BEAR DOWNWARD AGAINST SAID RETAINING SHOULDER TO TIGHTLY SECURE SAID STRAINER BODY TO SAID SINK WHEN IT IS ASSEMBLED WITH SAID STRAINER BODY.
Claim 2
Dependent Claim
117 words
IN A SINK STRAINER, THE COMBINATION COMPRISING A STRAINER BODY HAVING A CUP PORTION, A CIRCUMFERENTIAL SUPPORTING FLANGE EXTENDING LATERALLY OUTWARD FROM ITS TOP TO BEAR DOWNWARD AGAINST AN UPPER SURFACE OF A SINK, A CONSTRICTED THROAT PORTION AT ITS LOWER END ADAPTED FOR CONNECTION TO A TAILPIECE, AND A RETAINING SHOULDER ON ITS LATERAL SURFACE; AND A CAM LOCK RING ADAPTED TO FIT AROUND SAID STRAINER BODY AND TO BEAR UPWARD AGAINST A LOWER SURFACE OF SAID SINK, AND HAVING A CAM SURFACE ENGAGEABLE WITH SAID RETAINING SHOULDER ON SAID STRAINER BODY, TO BEAR DOWNWARD AGAINST SAID RETAINING SHOULDER TO TIGHTLY SECURE SAID STRAINER BODY TO SAID SINK WHEN IT IS ASSEMBLED WITH SAID STRAINER BODY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |