US2340226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sedimentation apparatus
Assignee: Dorr Co
•
Filing: 1941-12-31
•
Granted: 1944-01-25
•
Expires: 1961-12-31
Abstract
No abstract record available.
Inventors
- 👤 Elliott J Roberts
- 👤 William C Weber
- 👤 Anthony J Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:47
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/0003; B01D21/0039; B01D21/0042; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2444; B01D21/245
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) | 1947-01-24 | 1947-07-26 | 1948-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-24 | 1951-07-26 | 1952-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-24 | 1955-07-26 | 1956-01-25 | $7700.00 | Window Closed / Lapsed |