Patent US3299269A successfully refreshed from Google Patents.
US3299269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-destructive testing method utilizing radioactive clathrates
Assignee: RTX Corp
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Filing: 1963-06-27
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Granted: 1967-01-17
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Merlyn L Hanson
- 👤 Charles T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:15
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF DETECTING VOIDS IN A SOLID BODY COMPRISING THE STEPS OF IMBEDDING A POWDERED CLATHRATE MATERIAL HAVING A RADIOACTIVE GAS WITH A RELATIVELY HIGH GAMMA EMISSION TRAPPED THEREIN IN THE BODY HOMOGENOUSLY MIXING SAID CLATHRATE MATERIAL INTO SAID BODY, HEATING SAID BODY TO A TEMPERATURE SUFFICIENT TO BREAK DOWN SAID CLATHRATE AND RELEASE SAID GAS, AND INSPECTING SAID BODY TO DETERMINE THE PRESENCE OF POCKETS OF SAID GAS WITHIN SAID BODY.
Claim 2
Independent Claim
73 words
A METHOD OF DETECTING VOIDS IN A SOLID BODY COMPRISING THE STEPS OF IMBEDDING A POWDERED CLATHRATE MATERIAL HAVING A RADIOACTIVE GAS WITH A RELATIVELY HIGH GAMMA EMISSION TRAPPED THEREIN IN THE BODY HOMOGENOUSLY MIXING SAID CLATHRATE MATERIAL INTO SAID BODY, HEATING SAID BODY TO A TEMPERATURE SUFFICIENT TO BREAK DOWN SAID CLATHRATE AND RELEASE SAID GAS, AND INSPECTING SAID BODY TO DETERMINE THE PRESENCE OF POCKETS OF SAID GAS WITHIN SAID BODY.
References Cited (Backward Citations)
US2844735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |