USRE27225E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control for ventilating hood
Assignee: —
•
Filing: 1969-05-26
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Granted: 1971-11-09
•
Expires: 1989-05-26
Abstract
Abstract A VENTILATING KITCHEN HOOD INCLUDING A CASING IN THE FORM OF A RECTANGULAR POLYHEDRON WITH A SHORT WIDE FRONT OPENING AND HAVING A DRAWER SLIDABLE THROUGH THE FRONT OPENING. THE DRAWER HAS AN INTAKE PORT EXTENDING ACROSS A PORTION OF THE BOTTOM PANEL AND INCLUDES DUCT STRUCTURE HAVING AN AIR FILTER THEREIN. A FAN MOUNTED WITHIN THE CASING DRAWS AIR INTO THE DRAWER, THROUGH THE AIR FILTER AND OUT OF THE CASING.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:41
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2042; B; B01; B01D; B01D46/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |