US2746012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive electromagnetic inspection
Assignee: Tuboscope Co
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Filing: 1952-04-17
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Granted: 1956-05-15
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Expires: 1972-04-17
Abstract
No abstract record available.
Inventors
- 👤 Price Berry Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN APPARTUS ADAPTED FOR ELECTROMAGNETIC DETECTION OF FLOWS IN PIPE HAVING A NATURAL MAGNETIC PATTERN OF HELICAL FORM, A GROUP OF FOUR COILS, THE SECOND AND FOURTH OF SAID FOUR COILS RESPECTIVELY BEING ADAPTED TO BE DISPOSED CIRCUMFERENTIALLY AROUND SAID PIPE FROM THE FIRST AND THIRD OF SAID COILS, AND THE THIRD AND FOURTH OF SAID FOUR COILS BEING ADAPTED RESPECTIVELY TO BE DISPOSED ON HELICAL LINES FROM SAID FIRST AND SECOND OF SAID COILS,
Claim 2
Dependent Claim
75 words
IN APPARTUS ADAPTED FOR ELECTROMAGNETIC DETECTION OF FLOWS IN PIPE HAVING A NATURAL MAGNETIC PATTERN OF HELICAL FORM, A GROUP OF FOUR COILS, THE SECOND AND FOURTH OF SAID FOUR COILS RESPECTIVELY BEING ADAPTED TO BE DISPOSED CIRCUMFERENTIALLY AROUND SAID PIPE FROM THE FIRST AND THIRD OF SAID COILS, AND THE THIRD AND FOURTH OF SAID FOUR COILS BEING ADAPTED RESPECTIVELY TO BE DISPOSED ON HELICAL LINES FROM SAID FIRST AND SECOND OF SAID COILS,
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |