US2264390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extraction
Assignee: EIDP Inc
•
Filing: 1938-05-13
•
Granted: 1941-12-02
•
Expires: 1958-05-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Levine
- 👤 Orland R Sweeney
- 👤 Jr Charles E Kircher
- 👤 William L Mccracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:39
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/0226; C; C11; C11B; C11B1/00; C11B1/10; C11B1/102
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) | 1944-12-01 | 1945-06-02 | 1945-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-01 | 1949-06-02 | 1949-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-01 | 1953-06-02 | 1953-12-02 | $7700.00 | Window Closed / Lapsed |