US3038076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactivity well logging calibrating system
Assignee: Pgac Dev Co
•
Filing: 1957-11-05
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Granted: 1962-06-05
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Expires: 1977-11-05
Abstract
No abstract record available.
Inventors
- 👤 Serge A Scherbatskoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:42
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/06; G01T; G01T3/00; G01V5/02; G01V5/08; G01V5/10; G01V5/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH190499A
Cited
US2290869A
Cited
US2355013A
Cited
US2666142A
Cited
US2686881A
Cited
US2816235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |