US2690385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning pad and composition
Assignee: —
•
Filing: —
•
Granted: 1954-09-28
•
Expires: 1971-09-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
—
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A RE-USABLE CLOTH FOR CLEANING METALS WHICH IS MAINTAINED MOIST BY A HUMECTIVE MATERIAL, SAID CLOTH BEING IMPREGNATED WITH A COMPOSITION OF MATTER HAVING THE FOLLOWING INGREDIENTS BY WEIGHT: 15 TO 35% OF AN ACIDIC MATERIAL HAVING A PH BELOW 4 IN ONE PER CENT AQUEOUS CONCENTRATION, 15 TO 35% OF AN ABRASIVE MATERIAL, 1 TO 15% OF A POLYHYDROXY ALCOHOL AND 33 TO 67% OF WATER.
Claim 2
Dependent Claim
67 words
A RE-USABLE CLOTH FOR CLEANING METALS WHICH IS MAINTAINED MOIST BY A HUMECTIVE MATERIAL, SAID CLOTH BEING IMPREGNATED WITH A COMPOSITION OF MATTER HAVING THE FOLLOWING INGREDIENTS BY WEIGHT: 15 TO 35% OF AN ACIDIC MATERIAL HAVING A PH BELOW 4 IN ONE PER CENT AQUEOUS CONCENTRATION, 15 TO 35% OF AN ABRASIVE MATERIAL, 1 TO 15% OF A POLYHYDROXY ALCOHOL AND 33 TO 67% OF WATER.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US2034070A
Cited
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Cited
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Cited
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Cited
US2468853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |