US2596080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionization chamber
Assignee: United States Atomic Energy Commission
•
Filing: 1947-02-21
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Granted: 1952-05-06
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Expires: 1967-02-21
Abstract
No abstract record available.
Inventors
- 👤 John R Raper
- 👤 Raymond E Zirkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12; H01J47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN A RADIATION-MEASURING INSTRUMENT, IN COMBINATION, A SUBSTANTIALLY TUBULAR ELECTRODE COMPOSED OF A HOMOGENEOUS MIXTURE OF APPROXIMATELY 90 PER CENT METHYL METHACRYLATE RESIN AND 10 PER CENT GRAPHITE, AND A ROD-LIKE ELECTRODE AXIAL OF SAID TUBULAR ELECTRODE.
Claim 2
Dependent Claim
37 words
IN A RADIATION-MEASURING INSTRUMENT, IN COMBINATION, A SUBSTANTIALLY TUBULAR ELECTRODE COMPOSED OF A HOMOGENEOUS MIXTURE OF APPROXIMATELY 90 PER CENT METHYL METHACRYLATE RESIN AND 10 PER CENT GRAPHITE, AND A ROD-LIKE ELECTRODE AXIAL OF SAID TUBULAR ELECTRODE.
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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |