US3695265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face mask
Assignee: Individual
•
Filing: 1970-10-26
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Granted: 1972-10-03
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Expires: 1990-10-26
Abstract
Abstract A mask for removing particulate airborne matter during inhalation employing a unique method of attachment to the face of the user consisting of an adhesive patch which attaches to the nose of the user.
Inventors
- 👤 Elmer Lawrence Brevik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1161; A41D13/1169; A41D13/1176; A62; A62B; A62B23/00; A62B23/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A face mask for human use comprising a. a porous filter body having a formed shape which conforms to the human facial structure at the periphery including, b. a cup portion having a resilinacy to retain its unrestrained shape when released from an external force and of sufficient depth in relation to the periphery that the interior of the mask will contact the tip of the wearer''s nose only when the mask is depressed, and c. a spot of pressure sensitive adhesive attached only to the center of said cup portion on the interior side at a position whereby the adhesive contacts the nose of the wearer when the exterior of the mask is depressed and which adheres to the nose of the wearer and retains the mask in position by the positive force of deformation of the mask at the point of attachment to the nose and the opposing force exerted on the face at the periphery of the mask.
Claim 2
Dependent Claim
161 words
A face mask for human use comprising a. a porous filter body having a formed shape which conforms to the human facial structure at the periphery including, b. a cup portion having a resilinacy to retain its unrestrained shape when released from an external force and of sufficient depth in relation to the periphery that the interior of the mask will contact the tip of the wearer''s nose only when the mask is depressed, and c. a spot of pressure sensitive adhesive attached only to the center of said cup portion on the interior side at a position whereby the adhesive contacts the nose of the wearer when the exterior of the mask is depressed and which adheres to the nose of the wearer and retains the mask in position by the positive force of deformation of the mask at the point of attachment to the nose and the opposing force exerted on the face at the periphery of the mask.
Claim 3
Dependent Claim
22 words
The mask of claim 1 wherein the mask is of a size to cover both the nose and mouth of the wearer.
Claim 4
Dependent Claim
27 words
The mask of claim 1 wherein the mask is of a size to cover the nose and adjacent areas of the face but leaves the mouth exposed.
Claim 5
Dependent Claim
13 words
The mask of claim 1 wherein the mask is constructed of cellulosic fiber.
Claim 6
Dependent Claim
15 words
The mask of claim 1 wherein the mask is constructed of a porous plastic foam.
Claim 7
Dependent Claim
24 words
The mask of claim 1 wherein the filtering material of the mask is cellulosic fiber and the resiliancy is imparted by a sized fabric.
Claim 8
Dependent Claim
24 words
The mask of claim 1 wherein the filtering material of the mask is cellulosic fiber and the resiliancy is imparted by a metal screen.
Claim 9
Dependent Claim
23 words
The mask of claim 1 wherein the filtering material is cellulosic fiber anD the resiliancy is imparted by means of a plastic screen.
Claim 10
Dependent Claim
19 words
The mask of claim 1 wherein the periphery of the mask is more flexible than the central cup portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |