US2616839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for distilling by radiant energy
Assignee: Individual
•
Filing: 1948-07-13
•
Granted: 1952-11-04
•
Expires: 1968-07-13
Abstract
No abstract record available.
Inventors
- 👤 Ames Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:11
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0064; B01D1/0076; B01D1/0011; B01D1/0029; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/16; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/06; Y10S203/00; Y10S203/01; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US750747A
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US849579A
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US1361834A
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GB110821A
Cited
US1419008A
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US1966938A
Cited
FR820705A
Cited
US2357869A
Cited
US2449587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |