US3360120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pleated filter element package
Assignee: American Air Filter Co Inc
•
Filing: 1965-11-22
•
Granted: 1967-12-26
•
Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Allan R Getzin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:30
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0084; B01D46/0098; B65; B65D; B65D85/00; B65D85/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A FILTER ASSEMBLY COMPRISING AT LEAST TWO SUBSTANTIALLY IDENTICAL UNIT FILTER MEMBERS, EACH INCLUDING A BORDER FRAME MEANS DEFINING AN OPEN UPSTREAM AND DOWNSTREAM END TO PERMIT FLUID FLOW THERE THROUGH AND HAVING PLEATED FILTER MEDIUM DISPOSED TRAVERSE THE DIRECTION OF FLUID FLOW BETWEEN SAID UPSTREAM AND DOWNSTREAM ENDS OF SAID BORDER FRAME MEANS WITH THE PLEATS EXTENDING BEYOND SAID DOWNSTREAM END OF SAID BORDER FRAME MEANS, SAID UNIT FILTER MEMBERS HAVING THEIR BORDER FRAME MEANS POSITIONED IN FACED, DOWNSTREAM END-TO-DOWNSTREAM END, ABUTTING RELATIONSHIP TO EACH OTHER WITH THE PLEATED FILTER MEDIUM OF SIAD END-TO-END FILTER MEMBERS BEING DISPOSED IN INTERNESTING RELATIONSHIP; A BINDER STRIP HAVING A BREADTH SUBSTANTIALLY EQUAL TO THE ADDITIVE BREADTH TO SAID
Claim 2
Dependent Claim
116 words
A FILTER ASSEMBLY COMPRISING AT LEAST TWO SUBSTANTIALLY IDENTICAL UNIT FILTER MEMBERS, EACH INCLUDING A BORDER FRAME MEANS DEFINING AN OPEN UPSTREAM AND DOWNSTREAM END TO PERMIT FLUID FLOW THERE THROUGH AND HAVING PLEATED FILTER MEDIUM DISPOSED TRAVERSE THE DIRECTION OF FLUID FLOW BETWEEN SAID UPSTREAM AND DOWNSTREAM ENDS OF SAID BORDER FRAME MEANS WITH THE PLEATS EXTENDING BEYOND SAID DOWNSTREAM END OF SAID BORDER FRAME MEANS, SAID UNIT FILTER MEMBERS HAVING THEIR BORDER FRAME MEANS POSITIONED IN FACED, DOWNSTREAM END-TO-DOWNSTREAM END, ABUTTING RELATIONSHIP TO EACH OTHER WITH THE PLEATED FILTER MEDIUM OF SIAD END-TO-END FILTER MEMBERS BEING DISPOSED IN INTERNESTING RELATIONSHIP; A BINDER STRIP HAVING A BREADTH SUBSTANTIALLY EQUAL TO THE ADDITIVE BREADTH TO SAID
References Cited (Backward Citations)
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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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |