US3452870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating fluids by centrifugal and gravitational forces
Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1965-12-03
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Granted: 1969-07-01
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Expires: 1985-12-03
Abstract
No abstract record available.
Inventors
- 👤 Kihei Katsuta
- 👤 Yoshikatsu Shimasaki
- 👤 Ikuo Miki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:15
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0205; B01D17/0208; B01D17/0211; B01D17/0217
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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |