Patent US3738762A successfully refreshed from Google Patents.
US3738762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable toothbrush
Assignee: Individual
•
Filing: 1971-03-08
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Granted: 1973-06-12
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Expires: 1991-03-08
Abstract
Abstract A novel toothbrush that includes an elongated handle made of resilient plastic material, the handle being hollow so to form a compartment within each opposite end thereof, one compartment containing toothpaste and the other compartment containing mouthwash, and the opposite ends of the toothbrush handle being attachable to a removable brush head that includes a hollow base upon which brush bristles are supported, the hollow base being adaptable to receive the toothpaste or mouthwash from the elongated handle, and the base being perforated so to permit the toothpaste or mouthwash to flow outward upon the brush bristles.
Inventors
- 👤 J Moore
- 👤 E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/001; A46B11/002; A46B11/0041; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A toothbrush comprising a brush member and a cartridge, said brush member including a body having bristles and having a spout, and a passageway within said body, said passageway having an inlet portion extending through said spout and a discharge orifice between said bristles, said cartridge being hollow and having a chamber for containing material to be fed through said passageway to said bristles, said cartridge having an outlet opening for tight connection with said spout of said brush body, and a displaceable valve within said cartridge for impeding flow of material from said chamber throUgh said outlet opening, said displaceable valve having an operating arm within said chamber, at least a portion of an external wall of said chamber being sufficiently flexible so that it may be inwardly deformed by external finger pressure so as to engage said arm and open said valve.
Claim 2
Dependent Claim
144 words
A toothbrush comprising a brush member and a cartridge, said brush member including a body having bristles and having a spout, and a passageway within said body, said passageway having an inlet portion extending through said spout and a discharge orifice between said bristles, said cartridge being hollow and having a chamber for containing material to be fed through said passageway to said bristles, said cartridge having an outlet opening for tight connection with said spout of said brush body, and a displaceable valve within said cartridge for impeding flow of material from said chamber throUgh said outlet opening, said displaceable valve having an operating arm within said chamber, at least a portion of an external wall of said chamber being sufficiently flexible so that it may be inwardly deformed by external finger pressure so as to engage said arm and open said valve.
Claim 3
Dependent Claim
34 words
A construction as defined in claim 1, wherein said spout of said brush body is externally threaded and said outlet opening of said cartridge is internally threaded to be screwed tightly onto said spout.
Claim 4
Dependent Claim
24 words
A construction as defined in claim 1, wherein said cartridge when connected to said brush body constitutes a handle for manipulating said brush member.
Claim 5
Dependent Claim
31 words
A construction as defined in claim 1, wherein said brush body has an elongated handle integral therewith, said handle having a longitudinal recess of arcuate cross section for receiving said cartridge.
Claim 6
Dependent Claim
48 words
A construction as defined in claim 1, wherein said cartridge has two chambers, one at each end of the cartridge, each chamber having its own outlet opening and its own displaceable valve, one chamber being adapted to contain toothpaste and the other chamber being adapted to contain mouthwash.
References Cited (Backward Citations)
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Cited
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US1661746A
Cited
FR638951A
Cited
US2317002A
Cited
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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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |