Patent US3634901A successfully refreshed from Google Patents.
US3634901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination sponge and scouring device and method of making the same
Assignee: FRED L LANDSBERG
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Filing: 1970-02-26
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Granted: 1972-01-18
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Expires: 1990-02-26
Abstract
Abstract The invention comprises a flexible and resilient absorbent pad or body capable of retaining and releasing liquid from its surfaces, said body having a plurality of abrading filaments in crinkled or wave formation projecting from said surface and frictionally secured to the body as by threading through a portion of said body on at least one side. The pad on said side provides an abrading action and on the other side a wiping action. The invention further encompasses the method of securing said filaments to the pad or body by frictionally anchoring said filaments in wave formation by a sewing operation.
Inventors
- 👤 Fred L Landsberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:57
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; A47L17/00; A47L17/04; A47L17/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A cleaning and scouring device comprising in combination, a flexible cellular sponge pad capable of retaining liquid within itself and releasing liquid from its surface, a plurality of flexible and resilient plastic scouring filaments extending across a surface of said pad, each of said fiLaments being crinkled throughout the length thereof and having free projecting terminals extending from said pad surface and having the nonprojecting portions thereof along the full length intertwining the interior of said cellular body frictionally, flexibly and resiliently for securement thereto.
Claim 2
Dependent Claim
85 words
A cleaning and scouring device comprising in combination, a flexible cellular sponge pad capable of retaining liquid within itself and releasing liquid from its surface, a plurality of flexible and resilient plastic scouring filaments extending across a surface of said pad, each of said fiLaments being crinkled throughout the length thereof and having free projecting terminals extending from said pad surface and having the nonprojecting portions thereof along the full length intertwining the interior of said cellular body frictionally, flexibly and resiliently for securement thereto.
Claim 3
Dependent Claim
37 words
A cleaning and scouring device in accordance with claim 1 wherein said cellular body is of expanded plastic and said filaments throughout the nonprojecting portions are threaded through the interior of said cellular body for securement thereto.
Claim 4
Dependent Claim
20 words
A cleaning and scouring device in accordance with claim 1 wherein said scouring filaments are sharp edged in cross section.
Claim 5
Dependent Claim
70 words
In the method of producing a cleaning and scouring device comprising a flexible and resilient cellular body capable of retaining liquid within itself and releasing l liquid from its surface, the step of threading waved scouring filaments into and out of the said body from one surface thereof while said body is in moist condition to result in a plurality of free ended and waved filaments projecting from said surface.
Claim 6
Dependent Claim
70 words
In the method of producing a cleaning and scouring device comprising a flexible and resilient cellular body capable of retaining liquid within itself and releasing l liquid from its surface, the step of threading waved scouring filaments into and out of the said body from one surface thereof while said body is in moist condition to result in a plurality of free ended and waved filaments projecting from said surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |