US2419042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum distillation apparatus and pressure regulator therefor
Assignee: Individual
•
Filing: 1945-10-06
•
Granted: 1947-04-15
•
Expires: 1965-10-06
Abstract
No abstract record available.
Inventors
- 👤 Todd Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:38
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; B; B01; B01D; B01D3/00; B01D3/10; G05D16/028; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/469
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US290450A
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GB191111352A
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US1107887A
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US1412620A
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DE409338C
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US1562380A
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US1858202A
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US2350006A
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US2182564A
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US2267274A
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US2275648A
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US2267594A
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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) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |