Patent US2677003A successfully refreshed from Google Patents.
US2677003A
Expired / Lapsed
US
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Glass furnace
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1949-12-31
•
Granted: 1954-04-27
•
Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Arbeit Pierre
- 👤 Burthe Pierre La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:27
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/20
Claims Analysis
Total Claims: 0
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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) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |