US2633344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsifier for the intimate mixing of a liquid with a gas
Assignee: D'epuration Et D'entreprises SA Ste
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Filing: 1949-01-28
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Granted: 1953-03-31
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Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 Rekk Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:36
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/312; B01F25/3124; B01F25/31242; B01F23/00; B01F23/20; B01F23/23; B01F23/232; B01F23/2323; B01F23/23231; B01F23/237; B01F23/2376; B01F23/23761; B01F23/237613; B01F25/20; B01F25/21; B01F25/3121; B01F25/25; Y; Y10; Y10T; Y10T137/00; Y10T137/3149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |