US3207058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kitchen ventilating system
Assignee: Individual
•
Filing: 1962-09-21
•
Granted: 1965-09-21
•
Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Asa K Gaylord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:27
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/006; A62C3/04; F; F24; F24C; F24C15/00; F24C15/20; F24C15/2042; F24C15/2057; F24F; F24F11/00; F24F11/89; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1426; F24F2013/146; F24F2013/1473; F24F2013/148; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A KITCHEN VENTILATOR HAVING A VENTILATING DUCT WITH GREASE EXTRACTING MEANS, A FAN IN SAID DUCT, CLEANING AND FIRE EXTINGUISHING SPRAY MEANS IN SAID DUCT ARRANGED TO SPRAY ALL THE SURFACES IN SAID DUCT WHICH ARE SUBJECT TO HEAVY GREASE ACCUMULATION, A THERMOSTAT IN SAID DUCT, A TIME DELAY SWITCH ARRANGED TO CONTROL THE OPERATION OF SAID SPRAY MEANS, MEANS RESPONSIVE TO SAID THERMOSTAT TO STOP SAID FAN AND OPERATE SAIS SWITCH FOR FIRE EXTIN-
Claim 2
Dependent Claim
76 words
IN A KITCHEN VENTILATOR HAVING A VENTILATING DUCT WITH GREASE EXTRACTING MEANS, A FAN IN SAID DUCT, CLEANING AND FIRE EXTINGUISHING SPRAY MEANS IN SAID DUCT ARRANGED TO SPRAY ALL THE SURFACES IN SAID DUCT WHICH ARE SUBJECT TO HEAVY GREASE ACCUMULATION, A THERMOSTAT IN SAID DUCT, A TIME DELAY SWITCH ARRANGED TO CONTROL THE OPERATION OF SAID SPRAY MEANS, MEANS RESPONSIVE TO SAID THERMOSTAT TO STOP SAID FAN AND OPERATE SAIS SWITCH FOR FIRE EXTIN-
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |