US1869190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for evaporating liquids
Assignee: Elliott Co
•
Filing: 1927-06-02
•
Granted: 1932-07-26
•
Expires: 1947-06-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond N Ehrhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:04
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/16; B; B01; B01D; B01D1/00; B01D1/04; B01D3/00; B01D3/06; Y; Y10; Y10S; Y10S159/00; Y10S159/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-07-26 | 1936-01-25 | 1936-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-07-26 | 1940-01-25 | 1940-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-07-26 | 1944-01-25 | 1944-07-26 | $7700.00 | Window Closed / Lapsed |