US4084585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face mask
Assignee: Individual
•
Filing: 1977-01-12
•
Granted: 1978-04-18
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Expires: 1997-01-12
Abstract
Abstract A face mask cut from a sheet of foamed resin material has slits cut near each end shaped to curve inwardly in a U shape. The ends of the mask conform approximately to the U shape of the slits so that the material between the slits and the ends of the mask forms a pair of U-shaped ear loops. The ear loops are bendable in a one-half turn so that the U shapes extend outwardly away from the central portion of the mask for resiliently looping over the ears of the wearer to hold the mask in place.
Inventors
- 👤 Howard J. Venaleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:30
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1161; Y; Y10; Y10S; Y10S273/00; Y10S273/17
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
169 words
A face mask shaped to cover the nose and mouth of the wearer, said face mask comprising: a. a blank of resilient, foamed resin material having a central region and opposite end regions, each opposite end region of said mask having a slit spaced inward from the end of said mask; b. each of said slits extending from upper to lower regions of said mask; c. a central portion of each of said slits being U-shaped and curving inward toward said central region of said mask; d. said end regions of said mask having a peripheral edge spaced approximately equidistant from said slits so said material between said slits and said ends of said mask has an approximately uniform width and forms a pair of ear loops having U-shaped portions; and e. said ear loops being bendable in a one-half turn to dispose said U-shaped portions to extend outwardly away from said central region for resiliently looping over the ears of the wearer to hold said mask in place.
Claim 2
Dependent Claim
169 words
A face mask shaped to cover the nose and mouth of the wearer, said face mask comprising: a. a blank of resilient, foamed resin material having a central region and opposite end regions, each opposite end region of said mask having a slit spaced inward from the end of said mask; b. each of said slits extending from upper to lower regions of said mask; c. a central portion of each of said slits being U-shaped and curving inward toward said central region of said mask; d. said end regions of said mask having a peripheral edge spaced approximately equidistant from said slits so said material between said slits and said ends of said mask has an approximately uniform width and forms a pair of ear loops having U-shaped portions; and e. said ear loops being bendable in a one-half turn to dispose said U-shaped portions to extend outwardly away from said central region for resiliently looping over the ears of the wearer to hold said mask in place.
Claim 3
Dependent Claim
24 words
The face mask of claim 1 wherein said slits are curvilinear, and none of said material is removed from said mask by said slits.
Claim 4
Dependent Claim
44 words
The face mask of claim 1 wherein said mask is insufficiently long to extend from ear to ear until said ear loops are disposed in said one-half turn, and said turned ear loops resiliently bias said mask to fit a range of face sizes.
Claim 5
Dependent Claim
42 words
The face mask of claim 1 wherein said mask has a nose slit centered between said end region slits along the upper edge of said mask to form a band bendable under the wearer's nostrils below said upper edge of said mask.
Claim 6
Dependent Claim
50 words
The face mask of claim 1 wherein the end regions of said slits curve inward toward said central region of said mask along upper and lower regions of said mask, and said end regions of said slits have substantially smaller radii of curvature than said U-shaped portions of said slits.
Claim 7
Dependent Claim
36 words
The face mask of claim 5 wherein end regions of said ear loops are integral with said upper and lower regions of said mask and are directed along said upper and lower edges of said mask.
Claim 8
Dependent Claim
24 words
The face mask of claim 5 wherein said slits are curvilinear, and none of said material is removed from said mask by said slits.
Claim 9
Dependent Claim
44 words
The face mask of claim 7 wherein said mask is insufficiently long to extend from ear to ear until said ear loops are disposed in said one-half turn, and said turned ear loops resiliently bias said mask to fit a range of face sizes.
Claim 10
Dependent Claim
42 words
The face mask of claim 8 wherein said mask has a nose slit centered between said end region slits along the upper edge of said mask to form a band bendable under the wearer's nostrils below said upper edge of said mask.
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) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |