Patent US4030491A successfully refreshed from Google Patents.
US4030491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasal filter
Assignee: Individual
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Filing: 1975-10-31
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Granted: 1977-06-21
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Expires: 1995-10-31
Abstract
Abstract A filter that is adapted to be placed in the nostril of the nose includes a pair of containers, each having an open side and an opposite perforated side. The containers are formed by a flexible bridge. The open end of each container is closed by a perforated cover. A porous filter material is removably disposed in each container.
Inventors
- 👤 Alvin Mattila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:24
CPC Classifications
A; A62; A62B; A62B23/00; A62B23/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
A nasal filter device adapted to be inserted into the nostrils of the nose, comprising a pair of walled containers each having an open side and an opposite perforated side, each open side facing toward the other open side, flexible bridge means having distal end portions extending through said respective open sides and disposed in respective said containers and fixed thereto, a pair of perforated covers complementally configured to span respective open sides of said containers, each said cover having an aperture, said flexible bridge means extending through said apertures, said covers operative to move towards each other on said bridge means, and porous filter means removably disposed in said containers, said containers having substantially the shape of said nostrils.
Claim 2
Dependent Claim
120 words
A nasal filter device adapted to be inserted into the nostrils of the nose, comprising a pair of walled containers each having an open side and an opposite perforated side, each open side facing toward the other open side, flexible bridge means having distal end portions extending through said respective open sides and disposed in respective said containers and fixed thereto, a pair of perforated covers complementally configured to span respective open sides of said containers, each said cover having an aperture, said flexible bridge means extending through said apertures, said covers operative to move towards each other on said bridge means, and porous filter means removably disposed in said containers, said containers having substantially the shape of said nostrils.
Claim 3
Dependent Claim
17 words
The device as claimed in claim 1 wherein said means is a non-allergenic flexible, shape retaining material.
Claim 4
Dependent Claim
17 words
The device as claimed in claim 1 where said container is a non-allergenic shape retaining flexible member.
Claim 5
Dependent Claim
19 words
The device as defined in claim 1 wherein said filter is adapted to be inserted into the nasal passage.
Claim 6
Dependent Claim
20 words
The device as defined in claim 1 wherein said flexible bridge means is adapted to be disposed beneath the septum.
References Cited (Backward Citations)
US2264153A
Cited
US3802426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |