Patent US2796147A successfully refreshed from Google Patents.
US2796147A
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Assignee: Sebac Nouvelle S A
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Filing: 1951-11-14
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Granted: 1957-06-18
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Expires: 1971-11-14
Abstract
No abstract record available.
Inventors
- 👤 Coanda Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:54
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B04; B04C; B04C5/00; B04C5/02; B04C5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR703062A
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US1989774A
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GB362723A
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US2052869A
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FR872661A
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FR940741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |