US3014553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal steam separator
Assignee: Allis Chalmers Corp
•
Filing: 1959-04-08
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Granted: 1961-12-26
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Expires: 1979-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Jerman
- 👤 David H Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:32
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415368A
Cited
US1238829A
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US1353431A
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US1753972A
Cited
US2530112A
Cited
US2788087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |