US2592904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic agitator
Assignee: Chiksan Co
•
Filing: 1950-04-10
•
Granted: 1952-04-15
•
Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Donald M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/20; B01F25/21; B01F25/212; B01F25/2122; B01F27/00; B01F27/80; B01F27/90; B01F27/05; B01F27/11; B01F27/112; B01F27/1125; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/32015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |