US2571391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism to prevent jouncing in mechanical vibrating screens and the like
Assignee: Jeffrey Manufacturing Co
•
Filing: 1949-01-03
•
Granted: 1951-10-16
•
Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 Orval R Strawn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:56
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/286; B07B1/284; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |