Patent US3404694A successfully refreshed from Google Patents.
US3404694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair-curling devices
Assignee: MRS COTTRELL
•
Filing: 1965-07-13
•
Granted: 1968-10-08
•
Expires: 1985-07-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Hammel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:19
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14; A45D2/146; A45D2/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
261 words
A HAIR CURLING DEVICE FOR FORMING AND RETAINING A TRESS OF HAIR, SAID DEVICE COMPRISING: A HOLLOW TUBULAR BODY INCLUDING A WALL HAVING AN EXTERIOR SURFACE AND AN INTERIOR SURFACE AND EXTENDING AXIALLY BETWEEN OPPOSITE FIRST AND SECOND ENDS; AT LEAST ONE HAIR RETAINING CLIP HAVING A PAIR OF CLAMPING ARMS PROJECTING GENERALLY AXIALLY INWARDLY IN A DIRECTION FROM SAID FIRST END TOWARD SAID SECOND END SUCH THAT SAID WALL MAY BE RECEIVED BETWEEN SAID ARMS WHEN THE CLIP IS ENGAGED OVER THE FIRST END FOR CLAMPING A TRESS OF HAIR AGAINST SAID EXTERIOR SURFACE, SAID CLIP BEING CAPABLE OF RECEPTION WITHIN THE INTERIOR OF SAID BODY WHEN NOT IN SUCH CLAMPING ENGAGEMENT; A BULKHEAD WITHIN THE INTERIOR OF SAID BODY EXTENDING TRANSVERSE TO THE AXIAL EXTENT OF SAID WALL AND PROVIDING A SEATING SURFACE DISPLACED AXIALLY FROM SAID FIRST END A DISTANCE SUBSTANTIALLY EQUAL TO THE AXIAL EXTENT OF SAID CLIP; ABUTMENT MEANS UPON ONE OF THE ARMS ADJCENT THE INWARDMOST LIMIT THEREOF AND PROVIDING A BASE AT SAID LIMIT FOR ENGAGING SAID SEATING SURFACE WHEN SAID CLIP IS NOT IN SAID CLAMPING ENGAGEMENT; AND AN ELASTIC MEMBER COOPERATIVELY RELATED WITH THE BULKHEAD AND THE CLIP FOR BIASING SAID ABUTMENT MEANS INTO ENGAGEMENT WITH SAID SEATING SURFACE SUCH THAT THE CLIP IS RETAINED WITHIN THE INTERIOR OF THE BODY WHEN NOT IN SAID CLAMPING ENGAGEMENT WITH SAID WALL WITH BOTH SAID ARMS EXTENDING GENERALLY AXIALLY THEREIN AND SAID CLIP BEING IN POSITION FOR READY GRASPING AND MOVEMENT AXIALLY AGAINST THE BIASING FORCE OF SAID ELASTIC MEMBER INTO SAID CLAMPING ENGAGEMENT.
Claim 2
Dependent Claim
261 words
A HAIR CURLING DEVICE FOR FORMING AND RETAINING A TRESS OF HAIR, SAID DEVICE COMPRISING: A HOLLOW TUBULAR BODY INCLUDING A WALL HAVING AN EXTERIOR SURFACE AND AN INTERIOR SURFACE AND EXTENDING AXIALLY BETWEEN OPPOSITE FIRST AND SECOND ENDS; AT LEAST ONE HAIR RETAINING CLIP HAVING A PAIR OF CLAMPING ARMS PROJECTING GENERALLY AXIALLY INWARDLY IN A DIRECTION FROM SAID FIRST END TOWARD SAID SECOND END SUCH THAT SAID WALL MAY BE RECEIVED BETWEEN SAID ARMS WHEN THE CLIP IS ENGAGED OVER THE FIRST END FOR CLAMPING A TRESS OF HAIR AGAINST SAID EXTERIOR SURFACE, SAID CLIP BEING CAPABLE OF RECEPTION WITHIN THE INTERIOR OF SAID BODY WHEN NOT IN SUCH CLAMPING ENGAGEMENT; A BULKHEAD WITHIN THE INTERIOR OF SAID BODY EXTENDING TRANSVERSE TO THE AXIAL EXTENT OF SAID WALL AND PROVIDING A SEATING SURFACE DISPLACED AXIALLY FROM SAID FIRST END A DISTANCE SUBSTANTIALLY EQUAL TO THE AXIAL EXTENT OF SAID CLIP; ABUTMENT MEANS UPON ONE OF THE ARMS ADJCENT THE INWARDMOST LIMIT THEREOF AND PROVIDING A BASE AT SAID LIMIT FOR ENGAGING SAID SEATING SURFACE WHEN SAID CLIP IS NOT IN SAID CLAMPING ENGAGEMENT; AND AN ELASTIC MEMBER COOPERATIVELY RELATED WITH THE BULKHEAD AND THE CLIP FOR BIASING SAID ABUTMENT MEANS INTO ENGAGEMENT WITH SAID SEATING SURFACE SUCH THAT THE CLIP IS RETAINED WITHIN THE INTERIOR OF THE BODY WHEN NOT IN SAID CLAMPING ENGAGEMENT WITH SAID WALL WITH BOTH SAID ARMS EXTENDING GENERALLY AXIALLY THEREIN AND SAID CLIP BEING IN POSITION FOR READY GRASPING AND MOVEMENT AXIALLY AGAINST THE BIASING FORCE OF SAID ELASTIC MEMBER INTO SAID CLAMPING ENGAGEMENT.
References Cited (Backward Citations)
US2811973A
Cited
US2852029A
Cited
US3092118A
Cited
US3175562A
Cited
US3289680A
Cited
US3216427A
Cited
US3241561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |