Patent US3304623A successfully refreshed from Google Patents.
US3304623A
Expired / Lapsed
US
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Hair dryer
Assignee: Realistic Co
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Filing: 1964-07-13
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Granted: 1967-02-21
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Carroll R Reiss
- 👤 James H Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:47
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/44; A45D20/22; A45D20/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A HAIR DRYER WHICH COMPRISES A PAIR OF DESICCANT UNITS, A BLOWER, A DUCT CONNECTING EACH OF THE DESICCANT UNITS TO THE BLOWER, A DAMPER IN EACH DUCT TO CLOSE THE DUCT ASSOCIATED THEREWITH, MEANS CONNECTING THE DAMPERS TO OPEN ALTERNATIVELY, WHEREBY WHEN ONE OF THE DAMPERS IS OPEN THE OTHER DAMPER IS CLOSED AND AIR IS DRAWN IN THROUGH THE DESICCANT UNIT ASSOCIATED WITH THE OPEN DAMPER TO DRY THE AIR, MEANS FOR HEATING THE DRIED AIR LEAVING THE DESICCANT UNIT, A CONDUIT RECEIVING THE DRIED AND HEATED AIR FROM THE BLOWER, A HOOD CONNECTED TO THE CONDUIT TO RECEIVE AND DISCHARGE THE DRIED AND HEATED AIR, AND MEANS CONNECTING THE CONDUIT TO THE DESICCANT UNITS TO BYPASS A PORTION OF THE DRIED AND HEATED AIR
Claim 2
Dependent Claim
127 words
A HAIR DRYER WHICH COMPRISES A PAIR OF DESICCANT UNITS, A BLOWER, A DUCT CONNECTING EACH OF THE DESICCANT UNITS TO THE BLOWER, A DAMPER IN EACH DUCT TO CLOSE THE DUCT ASSOCIATED THEREWITH, MEANS CONNECTING THE DAMPERS TO OPEN ALTERNATIVELY, WHEREBY WHEN ONE OF THE DAMPERS IS OPEN THE OTHER DAMPER IS CLOSED AND AIR IS DRAWN IN THROUGH THE DESICCANT UNIT ASSOCIATED WITH THE OPEN DAMPER TO DRY THE AIR, MEANS FOR HEATING THE DRIED AIR LEAVING THE DESICCANT UNIT, A CONDUIT RECEIVING THE DRIED AND HEATED AIR FROM THE BLOWER, A HOOD CONNECTED TO THE CONDUIT TO RECEIVE AND DISCHARGE THE DRIED AND HEATED AIR, AND MEANS CONNECTING THE CONDUIT TO THE DESICCANT UNITS TO BYPASS A PORTION OF THE DRIED AND HEATED AIR
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |