US3499743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the manufacture of glass utilizing floating molten alkali metal sulfate
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1967-05-05
•
Granted: 1970-03-10
•
Expires: 1987-05-05
Abstract
No abstract record available.
Inventors
- 👤 Louis Fanica
- 👤 Andre H Pons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:20
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/04; C03B5/16; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1822705A
Cited
US1905534A
Cited
US2773111A
Cited
US2975555A
Cited
US3397972A
Cited
US3238030A
Cited
US3240581A
Cited
US3325268A
Cited
US3288451A
Cited
US3294505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |