US4563333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorizing fitting for air filters
Assignee: Individual
•
Filing: 1984-08-22
•
Granted: 1986-01-07
•
Expires: 2004-08-22
Abstract
Abstract A deodorizing fitting is provided for an air filter used in air circulation ducting of a domestic dwelling or other building for deodorizing the circulating air. The fitting comprises a rectangular envelope of perforated cardboard with a deodorizing insert therein and adhesive-backed tabs on adjacent edges of the envelope for securing same in the corner of the filter.
Inventors
- 👤 Walter J. Frigon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:09
CPC Classifications
A; A62; A62B; A62B23/00; A62B23/04; E; E03; E03D; E03D9/00; Y; Y10; Y10S; Y10S55/00; Y10S55/31
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
92 words
For use in scenting circulating air in a domestic dwelling or other building having air circulation ducting and mounting means in the ducting for an air filter, a packet containing air scenting material, and means for securing the packet to the filter in a position for scenting the air passing through the filter, wherein the packet is flat and rectangular and formed of perforated sheet material containing the scenting material, and the securing means comprises a fold-back adhesive-backed tab on one edge of the packet perpendicular to the plane of the packet.
Claim 2
Dependent Claim
92 words
For use in scenting circulating air in a domestic dwelling or other building having air circulation ducting and mounting means in the ducting for an air filter, a packet containing air scenting material, and means for securing the packet to the filter in a position for scenting the air passing through the filter, wherein the packet is flat and rectangular and formed of perforated sheet material containing the scenting material, and the securing means comprises a fold-back adhesive-backed tab on one edge of the packet perpendicular to the plane of the packet.
Claim 3
Dependent Claim
46 words
The invention of claim 1 wherein the packet has a further adhesive-backed tab along an edge adjacent said one edge whereby the packet may be mounted in a corner of the filter with said tabs folded back and adhered along adjacent peripheral edges of the filter.
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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) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |