US3081180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing glass batch ingredients
Assignee: PPG Industries Inc
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Filing: 1959-07-22
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Granted: 1963-03-12
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Krinov Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:02
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/02; C03C1/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF PREPARING GLASS BY FORMING AND HEATING A MIXTURE OF GLASS MAKING INGREDIENTS COMPRISING SAND AND SODA ASH WHICH COMPRISES MIXING AN AQUEOUS SOLUTION OF A PORTION OF THE SODA ASH CONTENT OF THE INGREDIENTS WITH THE SAND TO FORM A WET, FREE FLOWING MIXTURE PERMITTING THE MIXTURE TO STAND FOR A PERIOD OF TIME SUFFICIENT TO CONVERT THE MIXTURE TO A SOLID MASS BY SETTING UP THE BATCH INGREDIENTS, HEATING THE MASS TO A TEMPERATURE BETEEN 90* AND 200* F. TO CONVERT THE MASS TO A WET, FREE FLOWING MIXTURE AND TO PREVENT IT FROM SETTING UP AND FEEDING THE MIXTURE SO FORMED WHILE WET TO A GLASS FORMING FURNACE.
Claim 2
Independent Claim
113 words
A METHOD OF PREPARING GLASS BY FORMING AND HEATING A MIXTURE OF GLASS MAKING INGREDIENTS COMPRISING SAND AND SODA ASH WHICH COMPRISES MIXING AN AQUEOUS SOLUTION OF A PORTION OF THE SODA ASH CONTENT OF THE INGREDIENTS WITH THE SAND TO FORM A WET, FREE FLOWING MIXTURE PERMITTING THE MIXTURE TO STAND FOR A PERIOD OF TIME SUFFICIENT TO CONVERT THE MIXTURE TO A SOLID MASS BY SETTING UP THE BATCH INGREDIENTS, HEATING THE MASS TO A TEMPERATURE BETEEN 90* AND 200* F. TO CONVERT THE MASS TO A WET, FREE FLOWING MIXTURE AND TO PREVENT IT FROM SETTING UP AND FEEDING THE MIXTURE SO FORMED WHILE WET TO A GLASS FORMING FURNACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |