US4306892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable air freshening packet
Assignee: TEC-AIR Inc A CORP OF IL
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Filing: 1981-02-06
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Granted: 1981-12-22
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Expires: 2001-02-06
Abstract
Abstract A disposable packet, containing an air freshening medium, and formed with securing elements such that the packet may be positioned and retained in an air stream for removing contaminants and offensive odors from the air and discharging a filtered scented fragrance.
Inventors
- 👤 Anwar A. Atalla
- 👤 Richard E. Swin, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/28; A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; Y; Y10; Y10S; Y10S261/00; Y10S261/88
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
230 words
A disposable air freshening packet for treating air comprising a first perforated wall defining a first surface area having perforations extending through substantially all of the first surface area defined thereby, a second perforated wall defining a second surface area having perforations extending through substantially all of the second surface area defined thereby, a first side wall and a second side wall each joined to said first and second perforated walls for positioning said perforated walls in spaced relationship to each other to define a portion of an enclosure formed therebetween, wall means joined to said first and second perforated walls and said first and second side walls for completing said enclosure, air treating means carried within said enclosure for freshening air passed therethrough, a first retaining means comprising a hook-like projection extending outwardly adjacent a juncture of said first perforated wall and one of said side walls, and having a free end extending outward from said juncture for securing the packet in a stable position, and a second retaining means comprising a lip and bearing tab carried adjacent a juncture of said first perforated wall and the other of said side walls, said lip and said bearing tab being spaced from each other and extending outwardly from said juncture of said first perforated wall and said other of said side walls for securing the packet in a stable position.
Claim 2
Dependent Claim
230 words
A disposable air freshening packet for treating air comprising a first perforated wall defining a first surface area having perforations extending through substantially all of the first surface area defined thereby, a second perforated wall defining a second surface area having perforations extending through substantially all of the second surface area defined thereby, a first side wall and a second side wall each joined to said first and second perforated walls for positioning said perforated walls in spaced relationship to each other to define a portion of an enclosure formed therebetween, wall means joined to said first and second perforated walls and said first and second side walls for completing said enclosure, air treating means carried within said enclosure for freshening air passed therethrough, a first retaining means comprising a hook-like projection extending outwardly adjacent a juncture of said first perforated wall and one of said side walls, and having a free end extending outward from said juncture for securing the packet in a stable position, and a second retaining means comprising a lip and bearing tab carried adjacent a juncture of said first perforated wall and the other of said side walls, said lip and said bearing tab being spaced from each other and extending outwardly from said juncture of said first perforated wall and said other of said side walls for securing the packet in a stable position.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 wherein one of said side walls is of a greater dimension than the other of said side walls so that said first and second perforated walls converge toward each other.
Claim 4
Dependent Claim
45 words
The apparatus of claim 1 wherein said first retaining means is carried on said first perforated wall, said bearing tabs are carried on one of said side walls, said lip is carried by said side wall carrying said bearing tabs and said first perforated wall.
Claim 5
Dependent Claim
17 words
The apparatus of claim 1 wherein said first retaining means is carried on said first perforated wall.
Claim 6
Dependent Claim
17 words
The apparatus of claim 1 wherein said bearing tabs are carried on one of said side walls.
Claim 7
Dependent Claim
20 words
The apparatus of claim 5 wherein said lip is carried on said perforated wall and one of said side walls.
Claim 8
Dependent Claim
14 words
The apparatus of claim 5 wherein said lip is carried on said perforated wall.
Claim 9
Dependent Claim
16 words
The apparatus of claim 5 wherein said lip is carried on one of said side walls.
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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |