US4354496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hood for prevention of scalp hair loss
Assignee: Individual
•
Filing: 1981-03-17
•
Granted: 1982-10-19
•
Expires: 2001-03-17
Abstract
Abstract A hypothermic scalp tourniquet hood comprises an exterior flexible elongated casing and interior flexible elongated casing. The two casings are joined at their bottom. The interior casing is closed at the top and the exterior casing is open to form a space in which ice can be placed. A drawstring is positioned within the hood at the bottom so that tourniquet-like pressure can be applied to the hairline of the user when the hood is in place.
Inventors
- 👤 Esther Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F7/103; A61F2007/0001
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A hypothermic tourniquet hood to prevent scalp hair loss comprising, an exterior flexible elongated casing open at the top and bottom, the bottom adapted to be placed on the head of a user, an interior flexible elongated casing within said exterior casing, said interior casing being closed at its top end and joined to said exterior casing at its bottom to form a space between said casings which can be filled with ice, and a drawstring around the bottom of the joined casings, the diameter and position of said drawstring being such that it can be drawn tight to apply pressure as a tourniquet to a patient's hairline.
Claim 2
Dependent Claim
108 words
A hypothermic tourniquet hood to prevent scalp hair loss comprising, an exterior flexible elongated casing open at the top and bottom, the bottom adapted to be placed on the head of a user, an interior flexible elongated casing within said exterior casing, said interior casing being closed at its top end and joined to said exterior casing at its bottom to form a space between said casings which can be filled with ice, and a drawstring around the bottom of the joined casings, the diameter and position of said drawstring being such that it can be drawn tight to apply pressure as a tourniquet to a patient's hairline.
Claim 3
Dependent Claim
24 words
A hypothermic scalp tourniquet hood according to claim 1, including a plurality of partitions between said casings to divide said space into separate compartments.
Claim 4
Dependent Claim
40 words
A hypothermic scalp tourniquet hood according to either of claims 1 or 2, wherein a second drawstring is positioned around the top of the exterior casing to close the space between the casings after it has been filled with ice.
Claim 5
Dependent Claim
22 words
A hypothermic scalp tourniquet hood according to claim 2, wherein the partitions are attached between the inner casing and the exterior casing.
Claim 6
Dependent Claim
169 words
A hypothermic scalp tourniquet hood, comprising, an exterior elongated flexible casing open at the top and bottom, the bottom adapted to be placed on the head of a user, an interior elongated, flexible casing within said exterior casing, said interior casing being substantially the same length as the exterior casing and closed at its top, the bottom edges of said casings being joined to form a space between said casings which can be filled with ice, a plurality of partitions between said casings to divide said space into separate circumferential compartments, said partitions being sewn to said exterior and interior casings along substantially their entire lengths between said top and said bottom, a drawstring around the bottom of the joined casings, the diameter and position of said drawstring being such that it can be drawn tight to apply pressure as a tourniquet to a patient's hairline, and a drawstring at the top of the hood for closing said compartments after they have been at least partially filled with ice.
Claim 7
Dependent Claim
169 words
A hypothermic scalp tourniquet hood, comprising, an exterior elongated flexible casing open at the top and bottom, the bottom adapted to be placed on the head of a user, an interior elongated, flexible casing within said exterior casing, said interior casing being substantially the same length as the exterior casing and closed at its top, the bottom edges of said casings being joined to form a space between said casings which can be filled with ice, a plurality of partitions between said casings to divide said space into separate circumferential compartments, said partitions being sewn to said exterior and interior casings along substantially their entire lengths between said top and said bottom, a drawstring around the bottom of the joined casings, the diameter and position of said drawstring being such that it can be drawn tight to apply pressure as a tourniquet to a patient's hairline, and a drawstring at the top of the hood for closing said compartments after they have been at least partially filled with ice.
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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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |