Patent US2465833A successfully refreshed from Google Patents.
US2465833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unbalanced weight vibratory screening apparatus
Assignee: Individual
•
Filing: 1946-10-29
•
Granted: 1949-03-29
•
Expires: 1966-10-29
Abstract
No abstract record available.
Inventors
- 👤 Barker Wilfred
- 👤 Barker William Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:25
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/40; B07B1/286
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE248325C
Cited
US621568A
Cited
US787190A
Cited
US874051A
Cited
GB435854A
Cited
US2087092A
Cited
US2358876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |