US3316562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink stopper
Assignee: Individual
•
Filing: 1964-05-18
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Granted: 1967-05-02
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 William E Van Dyke
- 👤 Balthrope Otis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:33
CPC Classifications
A; A47; A47K; A47K1/00; A47K1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A STOPPER AND DRAIN ASSEMBLY FOR SINKS INCLUDING A WELL ADAPTED TO BE POSITIONED CENTRALLY OF A SINK AND A REDUCED DIAMETER DRAINAGE PIPE, A CONNECTING PORTION BETWEEN THE TOP OF SAID PIPE AND THE BOTTOM OF SAID WELL DEFINING A SHOULDER, A GARBAGE STRAINER COMPRISING A FLAT PERFORATE PLATE HAVING AN ANNULAR WALL OF A HEIGHT NOT GREATER THAN ONE-HALF THE DEPTH OF SAID WELL AND A DIAMETER SLIGHTLY LESS THAN THAT OF SAID CONNECTING PORTION SEATING ON SAID SHOULDER IN SAID WELL, AND A HANDLE SECURED TO THE UPPER SURFACE OF SAID PERFORATE PLATE OF A HEIGHT NO GREATER THAN THAT OF SAID FLANGE; AND A STOPPER MEMBER COMPRISING AN ANNULAR IMPERFORATE PLATE HAVING AN ANNULAR WALL OF A DIAMETER SUBSTANTIALLY EQUAL TO THAT OF SAID FIRST MENTIONED ANNULAR WALL, AND OF A HEIGHT NOT GREATER THAN ONE-HALF THE DEPTH OF SAID WELL, A HANDLE SECURED TO THE UPPER SURFACE OF SAID IMPERFORATE PLATE OF A HEIGHT NO GREATER THAN SAID LAST MENTIONED ANNULAR WALL, AND SEALING MEANS SURROUNDING THE EXTERIOR PERIPHERY OF SAID LAST MENTIONED ANNULAR WALL, WHEREBY SAID STRAINER AND
Claim 2
Dependent Claim
184 words
A STOPPER AND DRAIN ASSEMBLY FOR SINKS INCLUDING A WELL ADAPTED TO BE POSITIONED CENTRALLY OF A SINK AND A REDUCED DIAMETER DRAINAGE PIPE, A CONNECTING PORTION BETWEEN THE TOP OF SAID PIPE AND THE BOTTOM OF SAID WELL DEFINING A SHOULDER, A GARBAGE STRAINER COMPRISING A FLAT PERFORATE PLATE HAVING AN ANNULAR WALL OF A HEIGHT NOT GREATER THAN ONE-HALF THE DEPTH OF SAID WELL AND A DIAMETER SLIGHTLY LESS THAN THAT OF SAID CONNECTING PORTION SEATING ON SAID SHOULDER IN SAID WELL, AND A HANDLE SECURED TO THE UPPER SURFACE OF SAID PERFORATE PLATE OF A HEIGHT NO GREATER THAN THAT OF SAID FLANGE; AND A STOPPER MEMBER COMPRISING AN ANNULAR IMPERFORATE PLATE HAVING AN ANNULAR WALL OF A DIAMETER SUBSTANTIALLY EQUAL TO THAT OF SAID FIRST MENTIONED ANNULAR WALL, AND OF A HEIGHT NOT GREATER THAN ONE-HALF THE DEPTH OF SAID WELL, A HANDLE SECURED TO THE UPPER SURFACE OF SAID IMPERFORATE PLATE OF A HEIGHT NO GREATER THAN SAID LAST MENTIONED ANNULAR WALL, AND SEALING MEANS SURROUNDING THE EXTERIOR PERIPHERY OF SAID LAST MENTIONED ANNULAR WALL, WHEREBY SAID STRAINER AND
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |