US3413133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opalescent glass fibers
Assignee: Owens Corning
•
Filing: 1963-04-10
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Granted: 1968-11-26
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Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Charles J Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:21
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/42; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/0203; C03B37/0213; C03B37/022; C03B37/06; C03C13/00; C03C13/006; C03C4/00; C03C2204/00; C03C2204/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
OPALESCENT GLASS FIBERS FORMED FROM A MELT CONSISTING ESSENTIALLY OF, BY WEIGHT 10-75% SIO2, 5-80% B2O3, A SUFFICIENT AMOUNT OF AT LEAST ONE ALKALINE EARTH METAL OXIDE TO PROMOTE IMMISCIBILITY AND FROM 1-15% BY WEIGHT OF A METALLIC OXIDE SELECTED FROM THE GROUP CONSISTING OF LI2O, NA2O,K2O,AG2O,AL2O3 AND PBO; SAID FIBERS FURTHER CONSISTING ESSENTIALLY OF TWO IMMISCIBLE GLASS PHASES INCLUDING A GLASS MATRIX, AND UNIFORMLY DISPERSED THROUGHOUT SAID MATRIX, GLOBULES OF AN IMMISCIBLE PHASE; SAID GLOBULES BEING IN SUFFICIENT QUANTITY TO PROVIDE OPALESCENCE TO SAID FIBERS; SAID METALLIC OXIDE REDUCING THE IMMISCIBILITY OF SAID PHASES AND THEREBY CONTROLLING THE OPALESCENCE OF SAID FIBERS.
Claim 2
Dependent Claim
103 words
OPALESCENT GLASS FIBERS FORMED FROM A MELT CONSISTING ESSENTIALLY OF, BY WEIGHT 10-75% SIO2, 5-80% B2O3, A SUFFICIENT AMOUNT OF AT LEAST ONE ALKALINE EARTH METAL OXIDE TO PROMOTE IMMISCIBILITY AND FROM 1-15% BY WEIGHT OF A METALLIC OXIDE SELECTED FROM THE GROUP CONSISTING OF LI2O, NA2O,K2O,AG2O,AL2O3 AND PBO; SAID FIBERS FURTHER CONSISTING ESSENTIALLY OF TWO IMMISCIBLE GLASS PHASES INCLUDING A GLASS MATRIX, AND UNIFORMLY DISPERSED THROUGHOUT SAID MATRIX, GLOBULES OF AN IMMISCIBLE PHASE; SAID GLOBULES BEING IN SUFFICIENT QUANTITY TO PROVIDE OPALESCENCE TO SAID FIBERS; SAID METALLIC OXIDE REDUCING THE IMMISCIBILITY OF SAID PHASES AND THEREBY CONTROLLING THE OPALESCENCE OF SAID FIBERS.
References Cited (Backward Citations)
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Cited
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |