← Back to Patent Explorer
US3335502A Expired / Lapsed US ⏱️ 0.0 years remaining

Hair dryer cap

Assignee: Sunbeam Corp
•
Filing: 1963-06-17
•
Granted: 1967-08-15
•
Expires: 1983-06-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Frederick J Ritter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 06:48
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.

References Cited (Backward Citations)

US2043721A Cited
US2298170A Cited
US3006079A Cited
US3044183A Cited
US3032891A Cited
US3168382A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag