US3107990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit filter assembly
Assignee: American Air Filter Co Inc
•
Filing: 1960-04-28
•
Granted: 1963-10-22
•
Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Allan R Getzin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:41
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A UNIT FILTER ASSEMBLY COMPRIOSING AN OPEN-ENDED FRAME MEMBER AND A FILTER MEDIUM DISPOSED THEREIN, SAID FRAME MEMBER HAVING A PLURLAITY OF SIDES, EACH SIDE INCLUDING A WEB PORTION AND A FLANGE PORTION DISPOSED AT SUBSTANTIALLY A RIGHT ANGLE TO SAID WEB PORTION, SAID SIDES BEING CONNECTED TOGETHER TO FORM A MULTI-CORNERED SUPPORTING FRAME ALONG THE PERIPHERY OF SAID FILTER MEDIUM WITH A CONNECTION AT AT LEAST ONE OF THE CORNERS FORMED BY TWO ADJACENT SIDES OF SAID FRAME MEMBER INCLUDING A TAB MEMBER EXTENDING FROM AN EXTREMITY OF THE FLANGE PORTION OF ONE OF SAID ADJACENT SIDES AND AN APERTURE PROVIDED IN THE WEB PORTION OF THE OTHER OF SAID ADJACENT SIDES, THE PERIPHERY OF SAID APERTURE DEFINING AN AREA OPENING CONFORMING AT LEAST TO THE AREA DEFINED BY SAID TAB MEMBER TO PERMIT SAID TAB MEMBER TO BE PIVOTED ABOUT ITS FLANGE PORTION THROUGH SAID APERTURE INTO FACING RELATIONSHIP WITH THE FLANGE PORTION OF THE OTHER SIDE AND WITHIN THE FRAME SIDES.
Claim 2
Dependent Claim
164 words
A UNIT FILTER ASSEMBLY COMPRIOSING AN OPEN-ENDED FRAME MEMBER AND A FILTER MEDIUM DISPOSED THEREIN, SAID FRAME MEMBER HAVING A PLURLAITY OF SIDES, EACH SIDE INCLUDING A WEB PORTION AND A FLANGE PORTION DISPOSED AT SUBSTANTIALLY A RIGHT ANGLE TO SAID WEB PORTION, SAID SIDES BEING CONNECTED TOGETHER TO FORM A MULTI-CORNERED SUPPORTING FRAME ALONG THE PERIPHERY OF SAID FILTER MEDIUM WITH A CONNECTION AT AT LEAST ONE OF THE CORNERS FORMED BY TWO ADJACENT SIDES OF SAID FRAME MEMBER INCLUDING A TAB MEMBER EXTENDING FROM AN EXTREMITY OF THE FLANGE PORTION OF ONE OF SAID ADJACENT SIDES AND AN APERTURE PROVIDED IN THE WEB PORTION OF THE OTHER OF SAID ADJACENT SIDES, THE PERIPHERY OF SAID APERTURE DEFINING AN AREA OPENING CONFORMING AT LEAST TO THE AREA DEFINED BY SAID TAB MEMBER TO PERMIT SAID TAB MEMBER TO BE PIVOTED ABOUT ITS FLANGE PORTION THROUGH SAID APERTURE INTO FACING RELATIONSHIP WITH THE FLANGE PORTION OF THE OTHER SIDE AND WITHIN THE FRAME SIDES.
References Cited (Backward Citations)
US2001681A
Cited
US2405716A
Cited
US2405293A
Cited
US2421743A
Cited
US2513946A
Cited
US2723731A
Cited
US2675887A
Cited
US2754928A
Cited
US3031047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |