Patent US3742524A successfully refreshed from Google Patents.
US3742524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair strainer: drain strainer
Assignee: Individual
•
Filing: 1971-08-02
•
Granted: 1973-07-03
•
Expires: 1991-08-02
Abstract
Abstract A drain sieve adapted to fit detachably in a drain hole of a sink or the like to catch hair, preventing it from clogging traps.
Inventors
- 👤 J Ballentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:21
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/264
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A drain strainer comprising: A FIRST MESH PORTION OF A FIRST DIAMETER AND SURFACE AREA AT LEAST COEXTENSIVE WITH THAT OF A DRAIN OPENING; AND A COLLAR PORTION OF A DIAMETER AND ENCLOSING AN AREA GREATER THAN THE DRAIN OPENING EXTENDING AROUND THE PERIPHERY OF AND RAISED FROM SAID FIRST PORTION SO AS TO EXTEND ABOVE THE SURFACE OF THE MESH PORTION A FINITE DISTANCE WHEN THE SIDE OF THE MESH PORTION OPPOSITE THE COLLAR PORTION IS PLACED OVER THE DRAIN OPENING, SAID COLLAR PORTION HAVING A MESH COVERING ON AT LEAST THE DRAIN REMOTE SIDE THEREOF, SAID MESH COVERING ON SAID COLLAR PORTION PROVIDING HAIR ENGAGING MESH STRANDS DOWN TO THE SURFACE INTO WHICH THE DRAIN OPENS WHEREBY IN USE THE COLLAR PORTION RESTS UPON AND EXTENDS UPWARDLY FROM THE PERIPHERAL SURFACE OF SAID DRAIN OPENING.
Claim 2
Dependent Claim
137 words
A drain strainer comprising: A FIRST MESH PORTION OF A FIRST DIAMETER AND SURFACE AREA AT LEAST COEXTENSIVE WITH THAT OF A DRAIN OPENING; AND A COLLAR PORTION OF A DIAMETER AND ENCLOSING AN AREA GREATER THAN THE DRAIN OPENING EXTENDING AROUND THE PERIPHERY OF AND RAISED FROM SAID FIRST PORTION SO AS TO EXTEND ABOVE THE SURFACE OF THE MESH PORTION A FINITE DISTANCE WHEN THE SIDE OF THE MESH PORTION OPPOSITE THE COLLAR PORTION IS PLACED OVER THE DRAIN OPENING, SAID COLLAR PORTION HAVING A MESH COVERING ON AT LEAST THE DRAIN REMOTE SIDE THEREOF, SAID MESH COVERING ON SAID COLLAR PORTION PROVIDING HAIR ENGAGING MESH STRANDS DOWN TO THE SURFACE INTO WHICH THE DRAIN OPENS WHEREBY IN USE THE COLLAR PORTION RESTS UPON AND EXTENDS UPWARDLY FROM THE PERIPHERAL SURFACE OF SAID DRAIN OPENING.
Claim 3
Dependent Claim
54 words
A drain strainer according to claim 1 wherein the first mesh portion is spaced from the collar portion by a cylindrical mesh portion of a predetermined length whereby the mesh portion and cylindrical portion can be inserted into a drain until the mesh covered collar portion engages the peripheral surface of the drain opening.
Claim 4
Dependent Claim
21 words
A drain strainer according to claim 2 wherein the collar portion includes a ring with said mesh covering being folded thereover.
Claim 5
Dependent Claim
19 words
A drain strainer according to claim 3 wherein the mesh utilizes aluminum wire with a relatively fine mesh spacing.
Claim 6
Dependent Claim
29 words
A drain strainer according to claim 1 wherein the mesh covering extends across the top of the strainer such that all external surfaces of the strainer are mesh covered.
Claim 7
Dependent Claim
37 words
A drain strainer according to claim 5 including a clip secured to the first mesh portion on the drain side thereof whereby the drain strainer can be secured to a drain covering by means of the clip.
Claim 8
Dependent Claim
19 words
A drain strainer according to claim 6 wherein the mesh utilizes aluminum wire with a relatively fine mesh spacing.
References Cited (Backward Citations)
US404060A
Cited
CA540437A
Cited
US782860A
Cited
US960901A
Cited
US1450629A
Cited
US1494882A
Cited
US2285833A
Cited
CH230661A
Cited
US3316562A
Cited
US3377634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |