US3760433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air displacement deodorizer for toilet tanks and the like
Assignee: Individual
•
Filing: 1970-11-09
•
Granted: 1973-09-25
•
Expires: 1990-11-09
Abstract
Abstract A canister hangs in the toilet tank with the lower open end below the water level when the tank is full. A reservoir is situated at the upper end of the canister and as the water in the tank empties and refills, a column of air is displaced within the container which bubbles through the liquid in the reservoir and evaporates same.
Inventors
- 👤 S Mallin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:47
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A toilet tank deodorizer comprising a vertically elongated canister adapted to be positioned in a tank so that its lower portion is immersed in water when the tank is full but is exposed to air when the tank is flushed, said canister having open upper and lower ends and being provided with a transverse partition defining a reservoir for deodorizing liquid in the upper end portion of the canister, an open-ended pipe mounted on said partition in said reserVoir and communicating through an aperture in the partition with the lower portion of the canister, an inverted cap removably positioned in the reservoir on the partition over said pipe so that the pipe communicates with the interior of the cap, said cap being spaced inwardly from side walls of said reservoir and the lower edge of the cap being provided with a notch communicating the interior of the cap with the space between the cap and the reservoir side walls, and deodorant absorbent material provided within said cap and in said space between the cap and the reservoir side walls.
Claim 2
Dependent Claim
179 words
A toilet tank deodorizer comprising a vertically elongated canister adapted to be positioned in a tank so that its lower portion is immersed in water when the tank is full but is exposed to air when the tank is flushed, said canister having open upper and lower ends and being provided with a transverse partition defining a reservoir for deodorizing liquid in the upper end portion of the canister, an open-ended pipe mounted on said partition in said reserVoir and communicating through an aperture in the partition with the lower portion of the canister, an inverted cap removably positioned in the reservoir on the partition over said pipe so that the pipe communicates with the interior of the cap, said cap being spaced inwardly from side walls of said reservoir and the lower edge of the cap being provided with a notch communicating the interior of the cap with the space between the cap and the reservoir side walls, and deodorant absorbent material provided within said cap and in said space between the cap and the reservoir side walls.
References Cited (Backward Citations)
US791913A
Cited
US905369A
Cited
US1134556A
Cited
US2045473A
Cited
US2331589A
Cited
US2620486A
Cited
US2913734A
Cited
US2967310A
Cited
US3121236A
Cited
US3341074A
Cited
US3423182A
Cited
US3521306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |