US3461652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam separator of axial flow and centrifugal separation type
Assignee: Hitachi Ltd
•
Filing: 1965-10-19
•
Granted: 1969-08-19
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Takesi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:01
CPC Classifications
B; B04; B04C; B04C3/00; B04C3/06; B01; B01D; B01D45/00; B01D45/12; B04C2003/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059521A
Cited
US2346005A
Cited
US2648397A
Cited
US2582423A
Cited
US2659451A
Cited
US3009539A
Cited
US3258895A
Cited
US3216182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |