Patent US2294521A successfully refreshed from Google Patents.
Patent US3202797A successfully refreshed from Google Patents.
US3202797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair drier with fan and heater
Assignee: Knapp Monarch Co
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Filing: 1961-06-19
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Granted: 1965-08-24
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Robert D Uthoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:51
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A HAIR DRIER COMPRISING, IN COMBINATION: METALLIC CHASSIS MEANS INCLUDING AN APERTURED TOP WALL AND DEPENDING UPRIGHT SIDE WALL MEANS WHICH SUBSTANTIALLY DEFINE AND ENCLOSED BELOW SAID TOP WALL A FAN CHAMBER WITH AN EXTENSION THEREOF WHICH SERVES AS AN ELONGATED AIR FLOW PASSAGEWAY THAT TERMINATES AT AN APERTURE DEFINED IN A SIDE WALL OF SAID CHASSIS MEANS, A FAN MOUNTED ON SAID CHASSIS MEANS IN SAID CHAMBER AND ARRANGED TO DIRECT AIR UNDER PRESSURE THROUGH SAID AIR FLOW PASSAGEWAY TOWARD SAID APERTURE, HEATING MEANS SUPPORTED BY SAID CHASSIS MEANS AND POSITIONED IN SAID CHAMBER FOR HEATING THE AIR DIRECTED FROM SAID FAN, A CONTROL SWITCH ASSEMBLY CARRIED BY SAID CHASSIS MEANS, CIRCUIT MEANS SUPPORTED BY SAID CHASSIS MEANS BELOW SAID TOP WALL OF THE CHASSIS MEANS AND INWARDLY OF THE SIDE WALL MEANS AND ARRANGED TO BE SELECTIVELY CONTROLLED BY SAID SWITCH ASSEMBLY FOR EFFECTING OPERATIONS THAT INCLUDE ENERGIZING SELECTED PORTIONS OF SAID HEATING ELEMENT TO HEAT THE AIR BEING DISCHARGED THROUGH THE AIR FLOW PASSAGEWAY TO SELECTED TEMPERATURE LEVELS, SAID SWITCH ASSEMBLY SIMULTANEOUSLY OPERATING SAID FAN TO DEIVE AIR THROUGH SAID PASSAGEWAY, A HOUSING OF
Claim 2
Dependent Claim
187 words
A HAIR DRIER COMPRISING, IN COMBINATION: METALLIC CHASSIS MEANS INCLUDING AN APERTURED TOP WALL AND DEPENDING UPRIGHT SIDE WALL MEANS WHICH SUBSTANTIALLY DEFINE AND ENCLOSED BELOW SAID TOP WALL A FAN CHAMBER WITH AN EXTENSION THEREOF WHICH SERVES AS AN ELONGATED AIR FLOW PASSAGEWAY THAT TERMINATES AT AN APERTURE DEFINED IN A SIDE WALL OF SAID CHASSIS MEANS, A FAN MOUNTED ON SAID CHASSIS MEANS IN SAID CHAMBER AND ARRANGED TO DIRECT AIR UNDER PRESSURE THROUGH SAID AIR FLOW PASSAGEWAY TOWARD SAID APERTURE, HEATING MEANS SUPPORTED BY SAID CHASSIS MEANS AND POSITIONED IN SAID CHAMBER FOR HEATING THE AIR DIRECTED FROM SAID FAN, A CONTROL SWITCH ASSEMBLY CARRIED BY SAID CHASSIS MEANS, CIRCUIT MEANS SUPPORTED BY SAID CHASSIS MEANS BELOW SAID TOP WALL OF THE CHASSIS MEANS AND INWARDLY OF THE SIDE WALL MEANS AND ARRANGED TO BE SELECTIVELY CONTROLLED BY SAID SWITCH ASSEMBLY FOR EFFECTING OPERATIONS THAT INCLUDE ENERGIZING SELECTED PORTIONS OF SAID HEATING ELEMENT TO HEAT THE AIR BEING DISCHARGED THROUGH THE AIR FLOW PASSAGEWAY TO SELECTED TEMPERATURE LEVELS, SAID SWITCH ASSEMBLY SIMULTANEOUSLY OPERATING SAID FAN TO DEIVE AIR THROUGH SAID PASSAGEWAY, A HOUSING OF
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |