US3510289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone type glass furnace
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1968-10-31
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Granted: 1970-05-05
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Marcel Boivent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:56
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/021; C03B3/00; C03B3/02; C03B3/023; C03B3/026; C03B5/12; C03B5/16; C03B5/235; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371213A
Cited
US2455907A
Cited
US2634116A
Cited
US2597640A
Cited
US2760771A
Cited
US3223508A
Cited
US3350213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |