US2662350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for polishing glass
Assignee: Glaceries de la Sambre SA
•
Filing: 1949-03-23
•
Granted: 1953-12-15
•
Expires: 1969-03-23
Abstract
No abstract record available.
Inventors
- 👤 Laverdisse Edmond Jos Ghislain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:31
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/20; B24B7/22; B24B7/24; B24B7/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1989408A
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US1962767A
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US2105637A
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US2176481A
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US2269197A
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US2285318A
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US2348581A
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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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |