Patent US3335502A successfully refreshed from Google Patents.
US3335502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair dryer cap
Assignee: Sunbeam Corp
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Filing: 1963-06-17
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Granted: 1967-08-15
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Ritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:01
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A HAIR DRYER CAP, COMPRISING TWO LAYERS OF FLEXIBLE PLASTIC MATERIAL, EACH OF SAID LAYERS HAVING THE SHAPE OF A CLOSED HEAD COVER WHICH IS OPEN AT ITS BOTTOM PORTION TO DEFINE A HEAD RECEIVING OPENING THEREIN, ONE OF SAID LAYERS BEING PERFORATE AND THE OTHER LAYER BEING IMPERFORATE, THE PERFORATE LAYER BEING NESTED WITHIN THE IMPERFORATE LAYER, SAID TWO LAYERS BEING SEALED CLOSED TO EACH OTHER ALONG THEIR RESPECTIVE BOTTOM PORTIONS, SAID PERFORATE LAYER BEING LOOSELY NESTED WITHIN SAID IMPERFORATE LAYER TO PROVIDE AN INFLATABLE AIR SPACE THEREBETWEEN, MEANS FOR ADMITTING DRYING AIR INTO SAID AIR SPACE COMPRISING AN AIR INLET OPENING IN SAID IMPERFORATE LAYER, SAID LAYERS BEING ESSENTIALLY COMPLETELY FREE WITH RESPECT TO EACH OTHER AT THE FOREHEAD, CROWN, SIDE AND REAR PORTIONS OF SAID CAP AND THE HEAD COVER SHAPE OF SAID LAYERS BEING SUBSTANTIALLY OVERSIZE WITH RESPECT TO A HUMAN HEAD, WHEREBY ADMISSION OF DRYING AIR INTO SAID AIR SPACE INFLATES THE SAME TO CLOSELY CONFORM THE PERFORATE LAYER TO A LARGE VARIETY OF HAIR SETTINGS DIFFERING FROM EACH OTHER IN STYLE AND SIZE.
Claim 2
Dependent Claim
179 words
A HAIR DRYER CAP, COMPRISING TWO LAYERS OF FLEXIBLE PLASTIC MATERIAL, EACH OF SAID LAYERS HAVING THE SHAPE OF A CLOSED HEAD COVER WHICH IS OPEN AT ITS BOTTOM PORTION TO DEFINE A HEAD RECEIVING OPENING THEREIN, ONE OF SAID LAYERS BEING PERFORATE AND THE OTHER LAYER BEING IMPERFORATE, THE PERFORATE LAYER BEING NESTED WITHIN THE IMPERFORATE LAYER, SAID TWO LAYERS BEING SEALED CLOSED TO EACH OTHER ALONG THEIR RESPECTIVE BOTTOM PORTIONS, SAID PERFORATE LAYER BEING LOOSELY NESTED WITHIN SAID IMPERFORATE LAYER TO PROVIDE AN INFLATABLE AIR SPACE THEREBETWEEN, MEANS FOR ADMITTING DRYING AIR INTO SAID AIR SPACE COMPRISING AN AIR INLET OPENING IN SAID IMPERFORATE LAYER, SAID LAYERS BEING ESSENTIALLY COMPLETELY FREE WITH RESPECT TO EACH OTHER AT THE FOREHEAD, CROWN, SIDE AND REAR PORTIONS OF SAID CAP AND THE HEAD COVER SHAPE OF SAID LAYERS BEING SUBSTANTIALLY OVERSIZE WITH RESPECT TO A HUMAN HEAD, WHEREBY ADMISSION OF DRYING AIR INTO SAID AIR SPACE INFLATES THE SAME TO CLOSELY CONFORM THE PERFORATE LAYER TO A LARGE VARIETY OF HAIR SETTINGS DIFFERING FROM EACH OTHER IN STYLE AND SIZE.
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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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |