US2570171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deaeration apparatus
Assignee: Individual
•
Filing: 1946-01-23
•
Granted: 1951-10-02
•
Expires: 1966-01-23
Abstract
No abstract record available.
Inventors
- 👤 Kohorn Henry Von
- 👤 Kohorn Ralph S Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:50
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/103; B; B01; B01D; B01D19/00; B01D19/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2005811A
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US2146532A
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US2355057A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |