US2650158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scouring implement
Assignee: Unifrax I LLC
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Filing: 1950-08-03
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Granted: 1953-08-25
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Expires: 1970-08-03
Abstract
No abstract record available.
Inventors
- 👤 Don L Eastman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:32
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; B; B24; B24D; B24D15/00; B24D15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A SCOURING IMPLEMENT COMPRISING A FOAM RUBBER BACKING AND A SINGLE LAYER OF ABRASIVE GRANULES SUBSTANTIALLY ONE GRIT SIZE IN THICKNESS ADHESIVELY SECURED THERETO BY MEANS OF A WATER INSOLUBLE ADHESIVE HAVING PERMANENT FLEXIBILITY AND ELONGATION, SAID ADHESIVE COMPRISING A BLEND OF RUBBER, AND THERMOSETTING RESIN, SAID FOAM RUBBER BACKING BEING OF SUFFICIENT THICKNESS TO IMPACT COMPRESSIBILITY AND HANDLING STRENGTH TO THE ARTICLE.
Claim 2
Dependent Claim
63 words
A SCOURING IMPLEMENT COMPRISING A FOAM RUBBER BACKING AND A SINGLE LAYER OF ABRASIVE GRANULES SUBSTANTIALLY ONE GRIT SIZE IN THICKNESS ADHESIVELY SECURED THERETO BY MEANS OF A WATER INSOLUBLE ADHESIVE HAVING PERMANENT FLEXIBILITY AND ELONGATION, SAID ADHESIVE COMPRISING A BLEND OF RUBBER, AND THERMOSETTING RESIN, SAID FOAM RUBBER BACKING BEING OF SUFFICIENT THICKNESS TO IMPACT COMPRESSIBILITY AND HANDLING STRENGTH TO THE ARTICLE.
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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |