US3125869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating apparatus
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:00
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; B; B08; B08B; B08B15/00; B08B15/02; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
A VENTILATING HOOD COMPRISING A SHEET METAL ENCLOSURE, AN INTAKE APERTURE AND AN OUTLET APERTURE, A GRILL POSITIONED ACROSS SAID INTAKE APERTURE, COOLING COILS IN SAID GRILL, MEANS FOR CAUSING AIR TO PASS THROUGH SAID COOLING
References Cited (Backward Citations)
US2369375A
Cited
US2660867A
Cited
US2737788A
Cited
US2763139A
Cited
US2901963A
Cited
US2862436A
Cited
US2983484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |