US3240971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helium-3 thermal neutron proportional counter
Assignee: Texas Nuclear Corp
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Filing: 1962-05-29
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Granted: 1966-03-15
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 Ira L Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12; H01J47/125; H01J47/1261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A THERMAL NEUTRON PROPORTIONAL COUNTER COMPRISING A CIRCULAR CYLINDRICAL THERMAL-NEUTRON-PERMEABLE ENCLOSURE HAVING COAXIAL ANODE AND CATHODE ELECTRODES ADAPTED FOR PROPORTIONAL ION MULTIPLICATION AND HAVING A RATIO OF LENGTH TO DIAMETER OF AT LEAST 4 TO 1 AND CONTAINING HELIUM-3 IN A CONCENTRATION BETWEEN .0003 AND .0014 MOLE PER CENTIMETER OF LENGTH PER INCH OF DIAMETER, OF A TRITIUM CONTENT LESS THAN ONE PART IN 10**10.
Claim 2
Dependent Claim
65 words
A THERMAL NEUTRON PROPORTIONAL COUNTER COMPRISING A CIRCULAR CYLINDRICAL THERMAL-NEUTRON-PERMEABLE ENCLOSURE HAVING COAXIAL ANODE AND CATHODE ELECTRODES ADAPTED FOR PROPORTIONAL ION MULTIPLICATION AND HAVING A RATIO OF LENGTH TO DIAMETER OF AT LEAST 4 TO 1 AND CONTAINING HELIUM-3 IN A CONCENTRATION BETWEEN .0003 AND .0014 MOLE PER CENTIMETER OF LENGTH PER INCH OF DIAMETER, OF A TRITIUM CONTENT LESS THAN ONE PART IN 10**10.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |