US2494866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitating device
Assignee: Individual
•
Filing: 1947-08-19
•
Granted: 1950-01-17
•
Expires: 1967-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Fressola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/04; B; B01; B01F; B01F31/00; B01F31/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US59325A
Cited
US246183A
Cited
US760664A
Cited
US804935A
Cited
US1330801A
Cited
US2155596A
Cited
US2302804A
Cited
US2384898A
Cited
US2349028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |