US2653801A
Expired / Lapsed
US
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Process and apparatus for dispersing a substance in a liquid
Assignee: Stamicarbon BV
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Filing: 1951-10-12
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Granted: 1953-09-29
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Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Freerk J Fontein
- 👤 Gelder Arthur L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:00
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1284; B; B01; B01F; B01F25/00; B01F25/10; B01F25/102; B01J; B01J19/00; B01J19/24; B01J19/2405; C02F1/00; C02F1/58; C02F1/62; C02F1/64; C02F1/645; C02F1/72; C12; C12M; C12M29/00; C12M29/06; F; F04; F04F; F04F5/00; F04F5/42; B01F2025/91; B01F2025/919; B01F2025/9191; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1946; Y; Y02; Y02W; Y02W10/00; Y02W10/10
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |