Patent US2828014A successfully refreshed from Google Patents.
US2828014A
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Vibratory classification screen with means for dampening vibrations
Assignee: Individual
•
Filing: 1954-04-27
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Granted: 1958-03-25
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Expires: 1974-04-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Wantling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/284; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |