US3733905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical thermometer and holder
Assignee: Individual
•
Filing: 1971-09-02
•
Granted: 1973-05-22
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Expires: 1991-09-02
Abstract
Abstract A thermometer incorporating on a flexible and disposable substrate a plurality of spaced temperature-sensitive chemicals which are calibrated to indicate a temperature in the clinical range. The substrate is secured by a holder having a bifurcated mouthpiece and a handle extending from the mouthpiece. The bifurcated mouthpiece is generally V- or U-shaped so as to fit beneath a patient''s tongue while carrying the substrate. The temperature-sensing chemicals on the substrate are activated and the holder and substrate are withdrawn for temperature reading. The substrate is disposed and a new one placed in the holder. It is a feature of the invention that there be a minimum surface area contact between the holder and the substrate to minimize heat exchange between them.
Inventors
- 👤 N Bremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:58
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A chemical thermometer comprising: a. a temperature-indicating means; and b. a holder for said temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor , c. said bifurcated mouthpiece comprising a pair of arms joined at an apex to substantially form a V shape, d. said bifurcated mouthpiece being provided with retaining means to removably retain said temperature-indicating means.
Claim 2
Dependent Claim
61 words
A chemical thermometer comprising: a. a temperature-indicating means; and b. a holder for said temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor , c. said bifurcated mouthpiece comprising a pair of arms joined at an apex to substantially form a V shape, d. said bifurcated mouthpiece being provided with retaining means to removably retain said temperature-indicating means.
Claim 3
Dependent Claim
30 words
A chemical thermometer in accordance with claim 1, wherein: said retaining means comprises a grooved flange at the outer portion of each said arm and a hook within said apex.
Claim 4
Dependent Claim
34 words
A chemical thermometer in accordance with claim 1, wherein: said arms are provided with a plurality of raised bosses to reduce the area of surface contact between said bifurcated mouthpiece and said temperature-indicating means.
Claim 5
Dependent Claim
26 words
A chemical thermometer in accordance with claim 1, wherein: said bifurcated mouthpiece is integral with, and forms at least a part of, said temperature indicating means.
Claim 6
Dependent Claim
72 words
A chemical thermometer comprising: a. temperature-indicating means; and b. a holder for said temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor, c. said temperature-indicating means comprising temperature-indicating chemicals which change in visible property upon attaining design temperatures and a substrate for said temperature-indicating chemicals, d. said temperature-indicating chemicals being disposed on said substrate in scale formation, said substrate being provided with temperature index markings corresponding to said scale.
Claim 7
Dependent Claim
72 words
A chemical thermometer comprising: a. temperature-indicating means; and b. a holder for said temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor, c. said temperature-indicating means comprising temperature-indicating chemicals which change in visible property upon attaining design temperatures and a substrate for said temperature-indicating chemicals, d. said temperature-indicating chemicals being disposed on said substrate in scale formation, said substrate being provided with temperature index markings corresponding to said scale.
Claim 8
Dependent Claim
38 words
A chemical thermometer comprising: a. temperature-indicating means; and b. a holder for said temper temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor, c. said temperature-indicaTing means comprising temperature-indicating chemicals applied to said bifurcated mouthpiece.
Claim 9
Dependent Claim
38 words
A chemical thermometer comprising: a. temperature-indicating means; and b. a holder for said temper temperature-indicating means, said holder comprising a bifurcated mouthpiece and a handle therefor, c. said temperature-indicaTing means comprising temperature-indicating chemicals applied to said bifurcated mouthpiece.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |