Patent US3391740A successfully refreshed from Google Patents.
Patent US3198333A successfully refreshed from Google Patents.
US3198333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for domestic appliance
Assignee: Motors Liquidation Co
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Filing: 1962-01-02
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Granted: 1965-08-03
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Byron L Brucken
- 👤 Victor A Williamitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:07
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28033; B01D; B01D27/00; B01D27/005; B01D27/04; B01D27/06; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/23; B01D29/232; B01D39/00; B01J20/28023; B01J20/28052; B01D37/00; B01D37/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A DRY CLEANING SOLVENT FILTER FOR REMOVING PARTICULATE MATTER AND TREATING A LIQUID DRY CLEANING SOLVENT AND COMPRISING A FILTER CONTAINER HAVING A CONTAINER ADAPTED TO RECEIVE SOLVENT RETURNING FROM A DRY CLEANING APPARATUS AND A CONTAINING OUTLET ADAPTED TO SUPPLY SAID DRY CLEANING APPARATUS WITH FILTERED AND TREATED SOLVENT, SAID CONTAINER HAVING AN OPENING AND A CONVER FOR CLOSING SAID OPENING, AND A FILTER CARTRIDGE INSERTIBLE THROUGH SAID OPENING, SAID CARTRIDGE INCLUDING A BOTTO PLATE HAVING A FILTER OUTLET PORT, A TOP PLATE EFFECTIVELY IMPERFORATE AND IN SPACED PARALLEL RELATIONSHIP TO SAID BOTTOM PLATE, A PERFORATED CYLINDER PERPENDICULAR TO SAID PLATES AND EXTENDIN THEREBETWEEN WITH ONE END THEREOF IN COMMUNICATION WITH SAID FILTER OUTLET PORT AND A LONGITUDINALLY EXTENDING ACCORDION-PLATED ANNULUS OF FILTER PAPER SHEETING INTERPOSED IN SANDWICHED RELATIONSHIP BETWEEN SAID PLATES, SAID ACCORDION-PLEATED ANNULUS HAVING A CREASED RADIALLY INNER FOLD ENGAGING SAID PERFORATED CYLINDER AND A CREASED RADIALLY OUTER FOLD EXTENDING SUBSTANTIALLY TO THE PERIPHERY OF SAID PLATES, SAID FOLDS FORMING A PARTITION HAVING AN
Claim 2
Dependent Claim
167 words
A DRY CLEANING SOLVENT FILTER FOR REMOVING PARTICULATE MATTER AND TREATING A LIQUID DRY CLEANING SOLVENT AND COMPRISING A FILTER CONTAINER HAVING A CONTAINER ADAPTED TO RECEIVE SOLVENT RETURNING FROM A DRY CLEANING APPARATUS AND A CONTAINING OUTLET ADAPTED TO SUPPLY SAID DRY CLEANING APPARATUS WITH FILTERED AND TREATED SOLVENT, SAID CONTAINER HAVING AN OPENING AND A CONVER FOR CLOSING SAID OPENING, AND A FILTER CARTRIDGE INSERTIBLE THROUGH SAID OPENING, SAID CARTRIDGE INCLUDING A BOTTO PLATE HAVING A FILTER OUTLET PORT, A TOP PLATE EFFECTIVELY IMPERFORATE AND IN SPACED PARALLEL RELATIONSHIP TO SAID BOTTOM PLATE, A PERFORATED CYLINDER PERPENDICULAR TO SAID PLATES AND EXTENDIN THEREBETWEEN WITH ONE END THEREOF IN COMMUNICATION WITH SAID FILTER OUTLET PORT AND A LONGITUDINALLY EXTENDING ACCORDION-PLATED ANNULUS OF FILTER PAPER SHEETING INTERPOSED IN SANDWICHED RELATIONSHIP BETWEEN SAID PLATES, SAID ACCORDION-PLEATED ANNULUS HAVING A CREASED RADIALLY INNER FOLD ENGAGING SAID PERFORATED CYLINDER AND A CREASED RADIALLY OUTER FOLD EXTENDING SUBSTANTIALLY TO THE PERIPHERY OF SAID PLATES, SAID FOLDS FORMING A PARTITION HAVING AN
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |