Patent US4095559A successfully refreshed from Google Patents.
US4095559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilated litter box
Assignee: Individual
•
Filing: 1976-10-27
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Granted: 1978-06-20
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Expires: 1996-10-27
Abstract
Abstract A litter box for pet animals is provided with a ventilating enclosure. When connected to means for exhausting air therefrom, the box and the litter in it are ventilated by flow of air therefrom into the enclosure, from which it is exhausted elsewhere. The enclosure is formed by the floor and sidewalls of the box, a partial cover, and a foraminous barrier between the cover and the floor, preferably formed as a skirt on the cover.
Inventors
- 👤 Loren B. Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:09
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0107; A01K1/0047; A01K1/0064
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
Ventilated litter box for pet animals, comprising in combination a traylike open-top portable container having an upwardly extending wall terminating in a top edge, a partial cover therefor adapted to fit onto part of the top edge and to extend part of the way over the container, a skirt extending from the cover downward a distance approaching the depth of the container and extending laterally to the container wall to form an enclosure therewith, the skirt having ventilating openings therein, and the enclosure having an exhaust vent therein for connection to means for exhausting air from the enclosure and thereby drawing air through the litter box and the litter therein.
Claim 2
Dependent Claim
110 words
Ventilated litter box for pet animals, comprising in combination a traylike open-top portable container having an upwardly extending wall terminating in a top edge, a partial cover therefor adapted to fit onto part of the top edge and to extend part of the way over the container, a skirt extending from the cover downward a distance approaching the depth of the container and extending laterally to the container wall to form an enclosure therewith, the skirt having ventilating openings therein, and the enclosure having an exhaust vent therein for connection to means for exhausting air from the enclosure and thereby drawing air through the litter box and the litter therein.
Claim 3
Dependent Claim
45 words
Ventilated litter box according to claim 1, wherein the traylike container is rectangular in plan and the cover fits onto and extends at least partially along at least two of the top side edges thereof, and the skirt extends laterally to abut respective sidewalls thereof.
Claim 4
Dependent Claim
22 words
Ventilated litter box according to claim 2, wherein the the cover fits onto the rear and both opposite side top edges thereof.
Claim 5
Dependent Claim
22 words
Ventilating litter box according to claim 1, wherein the vent opening is formed in the cover by a cylindrical flange integral therewith.
Claim 6
Dependent Claim
48 words
Ventilating cover for litter box according to claim 1, rectangular with quadrilateral sidewalls, wherein the cover is U-shaped in plan, the body portion of the U fitting along one sidewall and the arm portions of the U fitting along both flanking sidewalls into proximity with the opposite sidewall.
Claim 7
Dependent Claim
51 words
Ventilating litter box apparatus according to claim 5, wherein the respective portions of the U-shaped cover extend away from the respective sidewalls only a minor portion of the corresponding dimension of the base portion, and the uncovered part of the base portion is larger in area than the covered part thereof.
References Cited (Backward Citations)
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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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |