Patent US3662767A successfully refreshed from Google Patents.
US3662767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair dyeing aid
Assignee: Individual
•
Filing: 1971-04-02
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Granted: 1972-05-16
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Expires: 1991-04-02
Abstract
Abstract A woman''s hair is held up in small bunches by a novel clamp to permit selective dyeing at the roots. The clamp comprises a plastic shell with resilient plastic opposed members for frictionally clamping a small bunch of hair and for holding it outwardly from the head.
Inventors
- 👤 Irene Murtha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:59
CPC Classifications
A; A45; A45D; A45D7/00; A45D7/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
A hair dyeing aid comprising in combination; a one-piece resilient elongated plastic shell formed of two similar half shells and adapted to normally spring to an open position; equal portions of elastic sponge means cemented inside each of said half shells; and underlapping and overlapping means respectively along opposite long edges of said shell for holding said shell clasped together in a closed position.
Claim 2
Dependent Claim
64 words
A hair dyeing aid comprising in combination; a one-piece resilient elongated plastic shell formed of two similar half shells and adapted to normally spring to an open position; equal portions of elastic sponge means cemented inside each of said half shells; and underlapping and overlapping means respectively along opposite long edges of said shell for holding said shell clasped together in a closed position.
Claim 3
Dependent Claim
21 words
A hair dyeing aid as set forth in claim 1; and wherein said shell is substantially cylindrical when in closed position.
Claim 4
Dependent Claim
19 words
A hair dyeing aid as set forth in claim 1; wherein said shell is formed of a polyamide plastic.
Claim 5
Dependent Claim
18 words
A hair dyeing aid as set forth in claim 1; wherein said sponge means is formed of polyurethane.
Claim 6
Dependent Claim
21 words
A hair dyeing aid as set forth in claim 1; wherein the outer surfaces of said sponge means are normally convex.
Claim 7
Dependent Claim
29 words
A hair dyeing aid as set forth in claim 1; wherein said plastic shell is formed with a restricted area running lengthwise along the median line of said shell.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |