US3255352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive method of detection of hidden explosives
Assignee: WILLIAM H JOHNSTON LAB Inc
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Filing: 1962-09-06
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Granted: 1966-06-07
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Expires: 1982-09-06
Abstract
No abstract record available.
Inventors
- 👤 William H Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:33
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/20; G01V5/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE METHOD OF DETECTION OF HIDDEN EXPLOSIVES IN OR ON CARRIERS SUCH AS AIRLINE BAGGAGE AND AIRLINE PASSENGERS WHICH COMPRISES ASSOCIATING RADIOACTIVE MATERIAL WITH AT LEAST ONE CONSTITUENT OF AN EXPLOSIVE IN SUCH FASHION THAT EACH UNIT OF SUCH CONSTITUENT IS TAGGED BY THE RADIOACTIVE MATERIAL, SAID RADIOACTIVE MATERIAL BEING OPERATIVE TO CAUSE SUBSTANTIALLY SIMULTANEOUS EMISSION OF A PLURALITY OF GAMMA RAYS DURING DECAY THEREOF, DETECTING GAMMA RAYS AT A PLURALITY OF LOCATIONS ADJACENT AN AREA THROUGH WHICH SUCH CARRIERS MUST PASS, AND FURNISHING AN INDICATION WHEN GAMMA RAYS ARE SUBSTANTIALLY SIMULTANEOUSLY DETECTED AT A PLURALITY OF SUCH LOCATIONS.
Claim 2
Independent Claim
99 words
THE METHOD OF DETECTION OF HIDDEN EXPLOSIVES IN OR ON CARRIERS SUCH AS AIRLINE BAGGAGE AND AIRLINE PASSENGERS WHICH COMPRISES ASSOCIATING RADIOACTIVE MATERIAL WITH AT LEAST ONE CONSTITUENT OF AN EXPLOSIVE IN SUCH FASHION THAT EACH UNIT OF SUCH CONSTITUENT IS TAGGED BY THE RADIOACTIVE MATERIAL, SAID RADIOACTIVE MATERIAL BEING OPERATIVE TO CAUSE SUBSTANTIALLY SIMULTANEOUS EMISSION OF A PLURALITY OF GAMMA RAYS DURING DECAY THEREOF, DETECTING GAMMA RAYS AT A PLURALITY OF LOCATIONS ADJACENT AN AREA THROUGH WHICH SUCH CARRIERS MUST PASS, AND FURNISHING AN INDICATION WHEN GAMMA RAYS ARE SUBSTANTIALLY SIMULTANEOUSLY DETECTED AT A PLURALITY OF SUCH LOCATIONS.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |