US2646655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding of abrasives to glass surfacing tools
Assignee: Glaceries de la Sambre SA
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Filing: 1952-05-14
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Granted: 1953-07-28
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Expires: 1972-05-14
Abstract
No abstract record available.
Inventors
- 👤 Laverdisse Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
B; B24; B24B; B24B57/00; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; B24B7/00; B24B7/20; B24B7/22; B24B7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1409888A
Cited
US1618085A
Cited
US1800743A
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US2041642A
Cited
US2178504A
Cited
US2309819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |