Patent US3144671A successfully refreshed from Google Patents.
US3144671A
Expired / Lapsed
US
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Dust cloth
Assignee: Dow Chemical Co
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Filing: 1958-04-04
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Granted: 1964-08-18
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Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Gould
- 👤 Nathanson Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:10
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A FABRIC FOR DUST CLOTHS AND THE LIKE IN WHICH A SUBSTANTIALLY MAJOR PORTION OF THE FABRIC SURFACE IS COMPRISED OF FLAT, SUBSTANTIALLY UNTWISTED MONO-FILAMENT NONFIBROUS YARNS CONSISTING OF A TRIBO-ELECTROSTATIC PLASTIC, NON-FIBROUS FILM OF POLYETHYLENE TEREPHTHALATE OF A THICKNESS RANGING BETWEEN 1.5 AND 9K MIL AND SLIT TO A SUBSTANTIALLY RECTANGULAR CROSS-SECTION HAVING RELATIVELY SHARP EDGES AND A WIDTH RANGING BETWEEN ONE ONE HUNDRED TWENTY-FOURTH AND ONE THIRTY-SECOND OF AN INCH, SAID FABRIC BEING WOVEN SO AS TO PRESENT THE WIDTH, RATHER THAN THE THICKNESS OF THE YARN TO THE SURFACE OF THE FABRIC.
Claim 2
Dependent Claim
95 words
A FABRIC FOR DUST CLOTHS AND THE LIKE IN WHICH A SUBSTANTIALLY MAJOR PORTION OF THE FABRIC SURFACE IS COMPRISED OF FLAT, SUBSTANTIALLY UNTWISTED MONO-FILAMENT NONFIBROUS YARNS CONSISTING OF A TRIBO-ELECTROSTATIC PLASTIC, NON-FIBROUS FILM OF POLYETHYLENE TEREPHTHALATE OF A THICKNESS RANGING BETWEEN 1.5 AND 9K MIL AND SLIT TO A SUBSTANTIALLY RECTANGULAR CROSS-SECTION HAVING RELATIVELY SHARP EDGES AND A WIDTH RANGING BETWEEN ONE ONE HUNDRED TWENTY-FOURTH AND ONE THIRTY-SECOND OF AN INCH, SAID FABRIC BEING WOVEN SO AS TO PRESENT THE WIDTH, RATHER THAN THE THICKNESS OF THE YARN TO THE SURFACE OF THE FABRIC.
References Cited (Backward Citations)
US108821A
Cited
US2074647A
Cited
US2106457A
Cited
US2195364A
Cited
US2354435A
Cited
US2498408A
Cited
US2665443A
Cited
US2740184A
Cited
US2601771A
Cited
FR1070031A
Cited
US2885703A
Cited
US2804728A
Cited
US2891270A
Cited
US2910710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |