Patent US2430389A successfully refreshed from Google Patents.
US2430389A
Expired / Lapsed
US
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Apparatus for the condensation of metallic vapors
Assignee: Individual
•
Filing: 1944-05-31
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Granted: 1947-11-04
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Expires: 1964-05-31
Abstract
No abstract record available.
Inventors
- 👤 Chubb William Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:53
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0078; B01D5/009; B01D5/0003; B01D5/0057; B01D5/006; C; C22; C22B; C22B26/00; C22B26/20; C22B26/22; C22B5/00; C22B5/02; C22B5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1980480A
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US1994346A
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US2122139A
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US2070101A
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US2229716A
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US2255549A
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US2251906A
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US2238907A
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US2238908A
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US2268779A
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US2337042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |