Patent US3364248A successfully refreshed from Google Patents.
US2593818A
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Colored glass fiber product and method of producing the same
Assignee: Owens Corning
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Filing: 1949-06-01
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Granted: 1952-04-22
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Expires: 1969-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jack H Waggoner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/465; C03C25/475; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962; Y10T428/2964; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF COLORING GLASS FIBERS COMPRISING THE STEPS OF COATING THE GLASS FIBERS TO FORM A LAYER THEREON OF COLORED METAL OXIDES IN FINELY DIVIDED FORM, THEN HEAT TREATING THE COATED FIBERS FOR A TIME RANGING FROM 2 SECONDS AT A TEMPERATURE SLIGHTLY BELOW THE FUSION TEMPERATURE FOR THE GLASS COMPOSITION OF WHICH THE FIBERS ARE FORMED TO ABOUT 5 MINUTES AT 600* F. TO SET THE COLORED OXIDES ON THE GLASS FIBER SURFACES.
Claim 2
Independent Claim
75 words
THE METHOD OF COLORING GLASS FIBERS COMPRISING THE STEPS OF COATING THE GLASS FIBERS TO FORM A LAYER THEREON OF COLORED METAL OXIDES IN FINELY DIVIDED FORM, THEN HEAT TREATING THE COATED FIBERS FOR A TIME RANGING FROM 2 SECONDS AT A TEMPERATURE SLIGHTLY BELOW THE FUSION TEMPERATURE FOR THE GLASS COMPOSITION OF WHICH THE FIBERS ARE FORMED TO ABOUT 5 MINUTES AT 600* F. TO SET THE COLORED OXIDES ON THE GLASS FIBER SURFACES.
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |