US3767751A
Expired / Lapsed
US
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Process for making pelletized glass batches
Assignee: GLASFORSKNINGSINST VAXJO
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Filing: 1971-07-08
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Granted: 1973-10-23
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Expires: 1991-07-08
Abstract
Abstract A PROCESS FOR MAKING PELLETIZED GLASS BATCHES BY MIXING PULVERULENT BATCH CONSTITUENTS AND ADDING WATER DURING ROTATION AND MIXING, WHEREIN THE PELLETIZATION IS CARRIED OUT AT A TEMPERATURE OF 100-600*C. AND THE WATER IS SUPPLIED DURING THE PELLETIZING OPERATION PROPER IS CONVERTED INTO STEAM.
Inventors
- 👤 B Simmingskoeld
- 👤 V Carbol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:25
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; C; C03; C03B; C03B1/00; C03B1/02; C03C; C03C1/00; C03C1/02; C03C1/026
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |