US2789232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation dosimeter
Assignee: Individual
•
Filing: 1953-12-08
•
Granted: 1957-04-16
•
Expires: 1973-12-08
Abstract
No abstract record available.
Inventors
- 👤 Richard J Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:17
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A RADIATION DOSIMETER FOR MEASURING EXPOSURE TO GAMMA RAYS, THE DOSIMETER COMPRISING A BASE MATERIAL THAT IS ADSORPTIVE OF MOISTURE AND CHEMICALLY INERT UNDER THE CONDITIONS OF USE, A SUBSTANTIALLY NON-VOLATILE HYDROGEN-PEROXIDE-COLORABLE COMPOSITION INTRODUCED IN LIMITED PROPORTIONS INTO THE EXPOSED FACE OF THE BASE MATERIAL, MOISTURE ADSORBED UPON THE BASE MATERIAL IN PROPORTION LESS THAN THAT GIVING A LIQUID PHASE BUT AT LEAST EQUAL TO
Claim 2
Dependent Claim
65 words
A RADIATION DOSIMETER FOR MEASURING EXPOSURE TO GAMMA RAYS, THE DOSIMETER COMPRISING A BASE MATERIAL THAT IS ADSORPTIVE OF MOISTURE AND CHEMICALLY INERT UNDER THE CONDITIONS OF USE, A SUBSTANTIALLY NON-VOLATILE HYDROGEN-PEROXIDE-COLORABLE COMPOSITION INTRODUCED IN LIMITED PROPORTIONS INTO THE EXPOSED FACE OF THE BASE MATERIAL, MOISTURE ADSORBED UPON THE BASE MATERIAL IN PROPORTION LESS THAN THAT GIVING A LIQUID PHASE BUT AT LEAST EQUAL TO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |