US3643040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disinfectant for a telephone mouthpiece and a manufacturing method thereof
Assignee: Dentsu Central KK
•
Filing: 1970-03-05
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Granted: 1972-02-15
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Expires: 1990-03-05
Abstract
Abstract The present invention relates to a disinfectant wafer of the disc shape and a container therefor, which is usable by fitting in a telephone mouthpiece and is simple to handle, and yet the disinfectant sublimates or volatilizes at normal temperature and has a strong bactericidal and disinfectant effect.
Inventors
- 👤 Masao Kaneyasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A telephone mouthpiece sterilizer comprising: disinfectant wafers as set forth in claim 1; a container having a peripheral flange, raised portions provided at intervals on the back of said peripheral flange, said container including a larger disinfectant receptacle and smaller disinfectant receptacles to contain disinfectant wafers, rib means connecting said peripheral flange and said disinfectant receptacles, and legs provided on the back of some said smaller disinfectant receptacles and adapted to fit securely in the usual holes of a telephone mouthpiece; and a reticulated cover of disc shape fitting on said container.
References Cited (Backward Citations)
US1081493A
Cited
US1365268A
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US2080676A
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US2288975A
Cited
FR1186020A
Cited
US3238313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |