Patent US2674548A successfully refreshed from Google Patents.
US2674548A
Expired / Lapsed
US
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Method of treating glass cloth
Assignee: Glass Fibers Inc
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Filing: 1951-05-28
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Granted: 1954-04-06
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Expires: 1971-05-28
Abstract
No abstract record available.
Inventors
- 👤 Emil H Balz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:15
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A METHOD OF REMOVING OIL AND STARCH BINDER MATERIAL FROM GLASS CLOTH, THE STEPS OF IMPREGNATING THE GLASS CLOTH WITH AN AQUEOUS SOLUTION OF AN ALKALINE AGENT HAVING A PH IN THE RANGE OF ABOUT 11 TO 13, REMOVING THE CLOTH FROM THE SOLUTION WITH BINDER THEREON, AND THEREAFTER HEATING THE IMPREGNATED CLOTH IN AN OXIDIZING ATMOSPHERE TO A TEMPERATURE SUFFICIENT TO BURN OFF THE BINDER MATERIAL THEREON.
Claim 2
Dependent Claim
69 words
IN A METHOD OF REMOVING OIL AND STARCH BINDER MATERIAL FROM GLASS CLOTH, THE STEPS OF IMPREGNATING THE GLASS CLOTH WITH AN AQUEOUS SOLUTION OF AN ALKALINE AGENT HAVING A PH IN THE RANGE OF ABOUT 11 TO 13, REMOVING THE CLOTH FROM THE SOLUTION WITH BINDER THEREON, AND THEREAFTER HEATING THE IMPREGNATED CLOTH IN AN OXIDIZING ATMOSPHERE TO A TEMPERATURE SUFFICIENT TO BURN OFF THE BINDER MATERIAL THEREON.
References Cited (Backward Citations)
US2407483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |