US3549523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for extracting solid particles from a liquid
Assignee: Institut National de Verre ASBL
•
Filing: 1967-12-07
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Granted: 1970-12-22
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Expires: 1987-12-07
Abstract
No abstract record available.
Inventors
- 👤 Pierre Gilard
- 👤 Maurice Galanti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:06
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D35/00; B01D35/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1992101A
Cited
US2210719A
Cited
US2164826A
Cited
US2468188A
Cited
US2455130A
Cited
GB777001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |