Patent US3278033A successfully refreshed from Google Patents.
US3278033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter press plate construction
Assignee: Individual
•
Filing: 1964-02-17
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Granted: 1966-10-11
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Louis G Winterstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:33
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/21; B01D25/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A FILTER PRESS ELEMENT COMPRISING A BODY PORTION HAVING FILTER FIELD MEANS ADAPTED TO RECEIVE A LIQUID IN A FILTERING OPERATION, INLET AND OUTLET MEANS IN SAID PRESS ELEMENT COMMUNICATING WITH SAID FIELD, SAID PRESS ELEMENT BEING CONSTRUCTED IN ITS THICKNESS DIMENSION OF TWO OR MORE INNER PLIES OF WOOD SECURED TOGETHER IN FACE TO FACE RELATION AND WITH THE WOOD GRAIN OF ADJACENT PLIES BEING DISPOSED AT RIGHT ANGLES TO EACH OTHER, AND TWO OR MORE OUTER PLIES SECURED TO SAID INNER PLIES, THE WOOD GRAIN OF SAID OUTER PLIES ALL EXTENDING IN THE SAME DIRECTION.
Claim 2
Dependent Claim
97 words
A FILTER PRESS ELEMENT COMPRISING A BODY PORTION HAVING FILTER FIELD MEANS ADAPTED TO RECEIVE A LIQUID IN A FILTERING OPERATION, INLET AND OUTLET MEANS IN SAID PRESS ELEMENT COMMUNICATING WITH SAID FIELD, SAID PRESS ELEMENT BEING CONSTRUCTED IN ITS THICKNESS DIMENSION OF TWO OR MORE INNER PLIES OF WOOD SECURED TOGETHER IN FACE TO FACE RELATION AND WITH THE WOOD GRAIN OF ADJACENT PLIES BEING DISPOSED AT RIGHT ANGLES TO EACH OTHER, AND TWO OR MORE OUTER PLIES SECURED TO SAID INNER PLIES, THE WOOD GRAIN OF SAID OUTER PLIES ALL EXTENDING IN THE SAME DIRECTION.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |