US2906648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masking method of producing a humidity sensor
Assignee: General Mills Inc
•
Filing: 1955-11-25
•
Granted: 1959-09-29
•
Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24471
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF MAKING A HUMIDITY SENSOR COMPRISING THE STEPS OF SHADOW CASTING A NON-PERMANENT SUBSTANCE ONTO A ROUGHENED SURFACE OF AN INERT ELEMENT, THE DIRECTION OF SHADOW CASTING BEING AT AN ACUTE ANGLE WITH THE GENERAL PLANE OF SAID SURFACE SO THAT PORTIONS OF THE HIGHER REGIONS ARE COATED, APPLYING A LAYER OF NOBLE METAL OVER BOTH THE COATED AND UNCOATED REGIONS, AND REMOVING SAID SUBSTANCE TOGETHER WITH THE METAL OVERLYING SAID SUBSTANCE SO THAT ONLY METALLIC AREAS REMAIN ON THE LOWER REGIONS OF SAID ROUGHENED SURFACE.
Claim 2
Independent Claim
88 words
A METHOD OF MAKING A HUMIDITY SENSOR COMPRISING THE STEPS OF SHADOW CASTING A NON-PERMANENT SUBSTANCE ONTO A ROUGHENED SURFACE OF AN INERT ELEMENT, THE DIRECTION OF SHADOW CASTING BEING AT AN ACUTE ANGLE WITH THE GENERAL PLANE OF SAID SURFACE SO THAT PORTIONS OF THE HIGHER REGIONS ARE COATED, APPLYING A LAYER OF NOBLE METAL OVER BOTH THE COATED AND UNCOATED REGIONS, AND REMOVING SAID SUBSTANCE TOGETHER WITH THE METAL OVERLYING SAID SUBSTANCE SO THAT ONLY METALLIC AREAS REMAIN ON THE LOWER REGIONS OF SAID ROUGHENED SURFACE.
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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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |