US3473300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating solid matter from aerosol suspensions
Assignee: Evonik Operations GmbH
•
Filing: 1968-02-06
•
Granted: 1969-10-21
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Expires: 1988-02-06
Abstract
No abstract record available.
Inventors
- 👤 Diederich Wilm
- 👤 Willi Flasskamp
- 👤 Eduard Broft
- 👤 Kurt Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:16
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D46/00; B01D46/0084; B01D46/0087; B01D46/02; B01D46/04; B01D46/56; B01D46/58; B01D46/66; B01D46/70; B01D50/00; B01D50/20; Y; Y10; Y10S; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784278A
Cited
US1784339A
Cited
GB344255A
Cited
US2276805A
Cited
US2717658A
Cited
US3146080A
Cited
US3318070A
Cited
US3364661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |