US2589298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sedimentation unit
Assignee: Dorr Co
•
Filing: 1946-12-28
•
Granted: 1952-03-18
•
Expires: 1966-12-28
Abstract
No abstract record available.
Inventors
- 👤 Scott Charles Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:09
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/186; B01D21/20; B01D21/24; B01D21/2405; B01D21/2427; B01D21/245; B01D21/30; B01D21/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702192A
Cited
US1702193A
Cited
US1960707A
Cited
US2122384A
Cited
US2126884A
Cited
US2418973A
Cited
US2360817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |