Patent US2970934A successfully refreshed from Google Patents.
US2970934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desizing glass fabrics and desized product
Assignee: Hess Goldsmith and Co
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Filing: 1956-08-27
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Granted: 1961-02-07
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Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Merrill R May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:54
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/002
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
A PROCESS FOR REMOVING A COMBUSTIBLE SIZE FROM A GLASS FABRIC WHICH COMPRISES HEATING A STRIP OF SAID FABRIC TO A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE IGNITION AND BURNING OF SAID SIZE WITH AN OPEN FLAME ON THE SURFACE OF THE FABRIC, AND MAINTAINING AN ATMOSPHERE IN THE AREA OF SAID FLAME ONLY SUFFICIENTLY RICH IN OXYGEN TO SUPPORT BURNING OF SAID SIZE WITH A YELLOW, CARBONCONTAINING FLAME, AND AFTER THE SIZE HAS BEEN BURNED OFF COOLING THE FABRIC TO BELOW SIZE IGNITION TEMPERATURE.
Claim 2
Dependent Claim
84 words
A PROCESS FOR REMOVING A COMBUSTIBLE SIZE FROM A GLASS FABRIC WHICH COMPRISES HEATING A STRIP OF SAID FABRIC TO A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE IGNITION AND BURNING OF SAID SIZE WITH AN OPEN FLAME ON THE SURFACE OF THE FABRIC, AND MAINTAINING AN ATMOSPHERE IN THE AREA OF SAID FLAME ONLY SUFFICIENTLY RICH IN OXYGEN TO SUPPORT BURNING OF SAID SIZE WITH A YELLOW, CARBONCONTAINING FLAME, AND AFTER THE SIZE HAS BEEN BURNED OFF COOLING THE FABRIC TO BELOW SIZE IGNITION TEMPERATURE.
Claim 3
Dependent Claim
13 words
A THERMALLY DESIZED GLASS FABRIC PRODUCT DESIZED BY THE PROCESS OF CLAIM 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |