US4240420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nose and mouth filter combination
Assignee: Individual
•
Filing: 1979-04-16
•
Granted: 1980-12-23
•
Expires: 1999-04-16
Abstract
Abstract Individual disposable nose and mouth filters, in combination, each of which is comprised of a sheet of a suitable air filtering material, sized and configurated respectively to loosely cover the mouth and nostril portions of the face of a wearer, continuous strips of a suitable pressure sensitive adhesive tape are engaged in a peripheral relation to outer peripheral edge areas of the respective filters and outer periphers of the adhesive tape, normally covered by removable backing strips, are extended beyond the filters for secure engagement with face areas surrounding the mouth and nostril areas of the wearer's face.
Inventors
- 👤 Florence Riaboy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:02
CPC Classifications
A; A62; A62B; A62B23/00; A62B23/06; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1161; A41D13/1169; A41D13/1176; Y; Y10; Y10S; Y10S55/00; Y10S55/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
Individual nose and mouth filters, in combination, comprising a pair of central filter elements, formed of a suitable flexible filter material, a first of which is sized to loosely cover a predetermined lower area of the nose including the nostrils, and a second of which is sized to loosely cover the mouth area, each of said first and second filters including an outwardly extending peripheral portion and being provided with a continuous strip of one-sided pressure sensitive adhesive tape including an inner peripheral adhesive portion secured to said filter materials outwardly extending peripheral portion and an outwardly extending peripheral adhesive portion for secure engagement with a predetermined facial skin area of a user, the pressure sensitive tape portion of one of the filters overlying and bonded to the pressure sensitive tape portion of the other filter.
Claim 2
Dependent Claim
136 words
Individual nose and mouth filters, in combination, comprising a pair of central filter elements, formed of a suitable flexible filter material, a first of which is sized to loosely cover a predetermined lower area of the nose including the nostrils, and a second of which is sized to loosely cover the mouth area, each of said first and second filters including an outwardly extending peripheral portion and being provided with a continuous strip of one-sided pressure sensitive adhesive tape including an inner peripheral adhesive portion secured to said filter materials outwardly extending peripheral portion and an outwardly extending peripheral adhesive portion for secure engagement with a predetermined facial skin area of a user, the pressure sensitive tape portion of one of the filters overlying and bonded to the pressure sensitive tape portion of the other filter.
References Cited (Backward Citations)
US893213A
Cited
US1946334A
Cited
US2928388A
Cited
US3019127A
Cited
US3049121A
Cited
US3458130A
Cited
US4004584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |