Patent US3343676A successfully refreshed from Google Patents.
US3343676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic filter
Assignee: US Philips Corp
•
Filing: 1965-04-01
•
Granted: 1967-09-26
•
Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Tyrrell Arthur James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:36
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; B; B01; B01D; B01D35/00; B01D35/06; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B03C2201/00; B03C2201/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A MAGNETIC FILTER COMPRISING A HOUSING PROVIDED WITH AN INLET AND AN OUTLET, A FIRST GRATE-LIKE ELEMENT OF MAGNETIC MATERIAL HAVING A PLURALITY OF PARALLEL-DISPOSED SLOTS THEREIN AND POSITIONED ACROSS SAID INLET, A SECOND GRATE-LIKE ELEMENT OF MAGNETIC MATERIAL HAVING A PLURALITY OF PARALLEL-DISPOSED SLOTS THEREIN AND POSITIONED ACROSS SAID OUTLET AND SUBSTANTIALLY PARALLEL TO THE FIRST GRATELIKE ELEMENT, A PLURALITY OF SCREENS LOCATED BETWEEN SAID FIRST AND SECOND GRATE-LIKE ELEMENTS AND EXTENDING IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID GRATE-LIKE ELEMENTS, EACH OF SAID SCREENS COMPRISING AT LEAST TWO NON-MAGNETIC, SPACED SUPPORTING STRIPS AND A PLURALITY
Claim 2
Dependent Claim
97 words
A MAGNETIC FILTER COMPRISING A HOUSING PROVIDED WITH AN INLET AND AN OUTLET, A FIRST GRATE-LIKE ELEMENT OF MAGNETIC MATERIAL HAVING A PLURALITY OF PARALLEL-DISPOSED SLOTS THEREIN AND POSITIONED ACROSS SAID INLET, A SECOND GRATE-LIKE ELEMENT OF MAGNETIC MATERIAL HAVING A PLURALITY OF PARALLEL-DISPOSED SLOTS THEREIN AND POSITIONED ACROSS SAID OUTLET AND SUBSTANTIALLY PARALLEL TO THE FIRST GRATELIKE ELEMENT, A PLURALITY OF SCREENS LOCATED BETWEEN SAID FIRST AND SECOND GRATE-LIKE ELEMENTS AND EXTENDING IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID GRATE-LIKE ELEMENTS, EACH OF SAID SCREENS COMPRISING AT LEAST TWO NON-MAGNETIC, SPACED SUPPORTING STRIPS AND A PLURALITY
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |