Patent US2843755A successfully refreshed from Google Patents.
US2843755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive inspection of housings
Assignee: Standard Oil Co
•
Filing: 1954-09-27
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Granted: 1958-07-15
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Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 William P Staker
- 👤 Robert B Jacobs
- 👤 Arthur C Borg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:16
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06
Claims Analysis
Total Claims: 0
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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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |