US3908648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary face mask
Assignee: Individual
•
Filing: 1973-03-05
•
Granted: 1975-09-30
•
Expires: 1993-03-05
Abstract
Abstract A frame defines a face mask. A flexible transparent disposable filter material is removably retained about the frame.
Inventors
- 👤 Doris C Mccosker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:57
CPC Classifications
A; A45; A45D; A45D44/00; A45D44/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
273 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein said separate flexible filter material means comprises a composite sheet of material having a filter material portion and a transparent portion; d. wherein said composite sheet comprises two pieces of material suitably joined to form a pocket for retaining a filter material, said pocket having holes therethrough whereby air can pass through said pocket and said filter material; e. wherein said separate flexible filter material means is in the form of a bag and is adapted to envelope said mask frame means; f. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; g. wherein retaining means are provided separated from said mask frame means adapted to engage said filter material means to position and retain said filter material means on said mask frame means; h. wherein said retaining means are complementally configured to said mask frame means and adapted to engage said filter material means in assembled condition with said mask frame means to conform said filter material means to the complementally configured portion of said mask frame means; i. wherein said retaining means are complementally configured to said manual support means so that said retaining means is manually supported against said manual support means.
Claim 2
Dependent Claim
273 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein said separate flexible filter material means comprises a composite sheet of material having a filter material portion and a transparent portion; d. wherein said composite sheet comprises two pieces of material suitably joined to form a pocket for retaining a filter material, said pocket having holes therethrough whereby air can pass through said pocket and said filter material; e. wherein said separate flexible filter material means is in the form of a bag and is adapted to envelope said mask frame means; f. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; g. wherein retaining means are provided separated from said mask frame means adapted to engage said filter material means to position and retain said filter material means on said mask frame means; h. wherein said retaining means are complementally configured to said mask frame means and adapted to engage said filter material means in assembled condition with said mask frame means to conform said filter material means to the complementally configured portion of said mask frame means; i. wherein said retaining means are complementally configured to said manual support means so that said retaining means is manually supported against said manual support means.
Claim 3
Dependent Claim
134 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; d. wherein retaining means are provided separated from said mask frame means engaging said separate flexible filter material means to position and retain said separate flexible filter material means on said mask frame means; and e. wherein said retaining means is pivotally connected to said manual support means.
Claim 4
Dependent Claim
134 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; d. wherein retaining means are provided separated from said mask frame means engaging said separate flexible filter material means to position and retain said separate flexible filter material means on said mask frame means; and e. wherein said retaining means is pivotally connected to said manual support means.
Claim 5
Dependent Claim
194 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein retaining means are provided separated from said mask frame means engaging said separate flexible filter material means to position and retain said separate flexible filter material means on said mask frame means; d. wherein said retaining means are complementally configured to said mask frame means and engage said separate flexible filter material means in assembled condition with said mask frame means to conform said separate flexible filter material means to the complementally configured portion of said mask frame means; and e. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually and wherein said retaining means are complementally configured to said manual support means so that said retaining means is manually supported against said manual support means.
Claim 6
Dependent Claim
194 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein retaining means are provided separated from said mask frame means engaging said separate flexible filter material means to position and retain said separate flexible filter material means on said mask frame means; d. wherein said retaining means are complementally configured to said mask frame means and engage said separate flexible filter material means in assembled condition with said mask frame means to conform said separate flexible filter material means to the complementally configured portion of said mask frame means; and e. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually and wherein said retaining means are complementally configured to said manual support means so that said retaining means is manually supported against said manual support means.
Claim 7
Dependent Claim
92 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; and c. wherein said separate flexible filter material means is in the form of a bag and is adapted to envelope said mask frame means.
Claim 8
Dependent Claim
92 words
A sanitary face mask for use by an individual during spraying, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured for, and adapted to be placed in contact with, a portion of a human face; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; and c. wherein said separate flexible filter material means is in the form of a bag and is adapted to envelope said mask frame means.
Claim 9
Dependent Claim
44 words
The invention of claim 4 wherein holes are provided in said separate flexible filter material means so that air can be drawn through said material means when said mask frame means is positioned against the face of the user of said sanitary face mask.
Claim 10
Dependent Claim
225 words
A sanitary face mask for use by an individual during spraying to close off from spray the eyes, nose, and mouth of the individual, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured to embrace at least that portion of a human face comprising eyes, nose, and mouth; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; d. wherein said separate flexible filter material means comprises a composite sheet of material having a filter material portion and a transparent portion; e. wherein said composite sheet comprises two pieces of material suitably joined to form a pocket having holes therethrough whereby air can pass through said pocket and said filter material; f. wherein retaining means are provided separated from said mask frame means adapted to engage said filter material means to position and retain said filter material means on said mask frame means; g. wherein said retaining means are disposed within said mask frame means; and h. wherein the transparent portion of said filter material means provides an unobscured view through a substantial portion of the surface area circumscribed by said suitably contoured perimeter.
Claim 11
Dependent Claim
225 words
A sanitary face mask for use by an individual during spraying to close off from spray the eyes, nose, and mouth of the individual, comprising, in combination: a. mask frame means forming a hollow substantially semi-ovoid with a perimeter suitably contoured to embrace at least that portion of a human face comprising eyes, nose, and mouth; b. a separate flexible filter material means removably retained on said mask frame means overlapping the suitably contoured perimeter of said mask frame means; c. wherein manual support means are connected to said mask frame means for supporting said mask frame means manually; d. wherein said separate flexible filter material means comprises a composite sheet of material having a filter material portion and a transparent portion; e. wherein said composite sheet comprises two pieces of material suitably joined to form a pocket having holes therethrough whereby air can pass through said pocket and said filter material; f. wherein retaining means are provided separated from said mask frame means adapted to engage said filter material means to position and retain said filter material means on said mask frame means; g. wherein said retaining means are disposed within said mask frame means; and h. wherein the transparent portion of said filter material means provides an unobscured view through a substantial portion of the surface area circumscribed by said suitably contoured perimeter.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |