Patent US3570036A successfully refreshed from Google Patents.
US3570036A
Expired / Lapsed
US
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Polyurethane sponge scrubber
Assignee: Truly Magic Products Inc
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Filing: 1969-06-18
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Granted: 1971-03-16
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Expires: 1989-06-18
Abstract
Abstract A SCRUBBER IN THE FORM OF A BLOCK OF POLYURETHANE SPONGE OF INTERCOMMUNICATING OPEN PORE STRUCTURE INCLUDING AT ONE SURFACE, SPACED ELONGATED REGIONS OF SUCH BLOCK WHICH ARE RIGIDIFIED COMPARD TO INTERMEDIATE SURFACE REGIONS OF SUCH BLOCK WHICH ARE NOT AND HENCE ARE MORE RESILENT, THEREBY PROVIDING AN EFFECTIVE SCRUBBING FACE, TE BLOCK PREFERABLY EING IMPREGNATED WITH A CLEANING PREPARATION CONTAING AN ANTIBACTERIAL AGENT TO PROVIDE A SURGICAL SCRUBBER.
Inventors
- 👤 James R Gilchrist
- 👤 Albert J Assad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:24
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04; A47L17/08
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |