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Patent US3521064A successfully refreshed from Google Patents.
US3521064A
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Analysis of gamma ray energy spectrum for constituent identification
Assignee: Schlumberger Technology Corp
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Filing: 1967-02-17
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Granted: 1970-07-21
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Expires: 1987-02-17
Abstract
No abstract record available.
Inventors
- 👤 James H Moran
- 👤 Jay Tititman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3061725A
Cited
US3277440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |