US4090501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin lesion analyzer
Assignee: Detroit Tool and Engineering Co
•
Filing: 1976-06-24
•
Granted: 1978-05-23
•
Expires: 1996-06-24
Abstract
Abstract A medical appliance useful for the detection and analysis of skin lesions consists of a magnifier having a flat bottom surface and a scale in combination therewith, the magnifier being mounted on a frame which includes a vertically extending metal rod having a light source attached thereto.
Inventors
- 👤 Horace Chaitin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/44; A61B5/441; A61B5/103; A61B5/107; A61B5/1079; A61B5/445; A61B5/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
An apparatus useful for the diagnosis and analysis of skin lesions consisting of a single magnifier for magnifying the image of said skin lesion, said magnifier having a flat bottom surface mounted on a frame, a handle extending upwardly from said frame and having an external light source holding means attached thereto and temperature detection means comprising a cholesteric liquid crystal composition capable of altering color in a predictable manner according to variations in surface body heat, said composition being contained on said flat bottom surface of said magnifier.
Claim 2
Independent Claim
89 words
An apparatus useful for the diagnosis and analysis of skin lesions consisting of a single magnifier for magnifying the image of said skin lesion, said magnifier having a flat bottom surface mounted on a frame, a handle extending upwardly from said frame and having an external light source holding means attached thereto and temperature detection means comprising a cholesteric liquid crystal composition capable of altering color in a predictable manner according to variations in surface body heat, said composition being contained on said flat bottom surface of said magnifier.
Claim 3
Independent Claim
72 words
An apparatus useful for the diagnosis and analysis of skin lesions consisting of a single magnifier for magnifying the image of said skin lesion, said magnifier having a flat bottom surfact mounted on a frame, a handle extending upwardly from said frame and having an external light source holding means attached thereto and temperature detection means comprising a thermocouple, said thermocouple being held within said handle, said handle being a hollow rod.
Claim 4
Independent Claim
72 words
An apparatus useful for the diagnosis and analysis of skin lesions consisting of a single magnifier for magnifying the image of said skin lesion, said magnifier having a flat bottom surfact mounted on a frame, a handle extending upwardly from said frame and having an external light source holding means attached thereto and temperature detection means comprising a thermocouple, said thermocouple being held within said handle, said handle being a hollow rod.
References Cited (Backward Citations)
US2389282A
Cited
US2586723A
Cited
US2795997A
Cited
US3546778A
Cited
US3661142A
Cited
US3774614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |