Patent US3213879A successfully refreshed from Google Patents.
US3213879A
Expired / Lapsed
US
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Self-aligning mechanism for regulating the discharge of solids from a centrifuge
Assignee: Individual
•
Filing: 1961-08-23
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Granted: 1965-10-26
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Expires: 1981-08-23
Abstract
No abstract record available.
Inventors
- 👤 Thompson Lee Lavere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:33
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7901; Y10T137/7903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1220092A
Cited
US1775999A
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US2069553A
Cited
US2150226A
Cited
US2398089A
Cited
US2564963A
Cited
US2832221A
Cited
US2806599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |