Patent US3451831A successfully refreshed from Google Patents.
US3451831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for agglomerating vitrifiable masses and the products thereof
Assignee: AGC Glass Europe SA
•
Filing: 1965-06-22
•
Granted: 1969-06-24
•
Expires: 1985-06-22
Abstract
No abstract record available.
Inventors
- 👤 Andre Miche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:10
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/02; C03C1/026; B; B23; B23K; B23K35/00; B23K35/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2220750A
Cited
US2366473A
Cited
US2869985A
Cited
US2945273A
Cited
US3149983A
Cited
US3074802A
Cited
US3234034A
Cited
US3306355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |