US3323926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent glass and method of making it
Assignee: Corning Glass Works
•
Filing: 1966-10-10
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Granted: 1967-06-06
•
Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas G O'leary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/12; Y; Y10; Y10S; Y10S501/00; Y10S501/90; Y10S501/905
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
105 words
IN A METHOD FOR MAKING A GLASS EXHIBITING STRONG FLUORESCENCE WHEN SUBJECTED TO ULTRA-VIOLET RADIATIONS OF WAVE LENGTHS RANGING FROM ABOUT 300-400 MILLIMICRONS WHICH COMPRISES MELTING A GLASS-FORMING BATCH CONSISTING ESSENTIALLY, IN WEIGHT PERCENT AS CALCULATED FROM THE BATCH, OF ABOUT 35-70% SIO2, 3-29% R2/, WHEREIN R2O CONSISTS OF THE SUM OF 0-20% LI2/, 0-25% NA2O, AND 0-25% K2O, AND 0.2-1.0% AG, COOLING THE MELT TO A GLASS AND SHAPING A BODY THEREFROM, AND THEREAFTER SIMULTANEOUSLY EXPOSING SAID GLASS BODY TO ULTRA-VIOLET RADIATION OF WAVE LENGTHS RANGING FROM ABOUT 280-340 MILLIMICRONS AND SUBJECTING SAID BODY TO A TEMPERATURE BETWEEN ABOUT 300*-450*C. FOR ABOUT 1-60 MINUTES.
Claim 2
Dependent Claim
105 words
IN A METHOD FOR MAKING A GLASS EXHIBITING STRONG FLUORESCENCE WHEN SUBJECTED TO ULTRA-VIOLET RADIATIONS OF WAVE LENGTHS RANGING FROM ABOUT 300-400 MILLIMICRONS WHICH COMPRISES MELTING A GLASS-FORMING BATCH CONSISTING ESSENTIALLY, IN WEIGHT PERCENT AS CALCULATED FROM THE BATCH, OF ABOUT 35-70% SIO2, 3-29% R2/, WHEREIN R2O CONSISTS OF THE SUM OF 0-20% LI2/, 0-25% NA2O, AND 0-25% K2O, AND 0.2-1.0% AG, COOLING THE MELT TO A GLASS AND SHAPING A BODY THEREFROM, AND THEREAFTER SIMULTANEOUSLY EXPOSING SAID GLASS BODY TO ULTRA-VIOLET RADIATION OF WAVE LENGTHS RANGING FROM ABOUT 280-340 MILLIMICRONS AND SUBJECTING SAID BODY TO A TEMPERATURE BETWEEN ABOUT 300*-450*C. FOR ABOUT 1-60 MINUTES.
Claim 3
Dependent Claim
27 words
A GLASS EXHIBITING STRONG FLUORESCENCE WHEN SUBJECTED TO ULTRA-VIOLET RADIATIONS OF WAVE LENGTHS RANGING FROM ABOUT 300-400 MILLIMICRONS MADE IN ACCORDANCE WITH THE METHOD 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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |