Patent JPS6314231A successfully refreshed from Google Patents.
Patent US3331511A successfully refreshed from Google Patents.
US3331511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic filter plate moving apparatus in a filter press
Assignee: Individual
•
Filing: 1964-10-19
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Granted: 1967-07-18
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Kurita Ken-Ichiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:35
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A FILTER PLATE MOVING APPARATUS IN A FILTER PRESS COMPRISING A CHAIN CIRCULATING BENEATH AND PARALLEL TO A ROW OF ARMS FIXED ON EITHER SIDE OF FILTER PLATES, AND MAIN PAWLS HAVING CAMS CO-OPERABLE WITH SAID ARMS AND AUXILIARY PAWLS CO-OPERABLE WITH SAID ARMS BOTH ROTATABLY ATTACHED TO SAID CHAIN AT CERTAIN INTERVALS.
Claim 2
Dependent Claim
53 words
A FILTER PLATE MOVING APPARATUS IN A FILTER PRESS COMPRISING A CHAIN CIRCULATING BENEATH AND PARALLEL TO A ROW OF ARMS FIXED ON EITHER SIDE OF FILTER PLATES, AND MAIN PAWLS HAVING CAMS CO-OPERABLE WITH SAID ARMS AND AUXILIARY PAWLS CO-OPERABLE WITH SAID ARMS BOTH ROTATABLY ATTACHED TO SAID CHAIN AT CERTAIN INTERVALS.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |