Patent US3243875A successfully refreshed from Google Patents.
US3243875A
Expired / Lapsed
US
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Billet inspection apparatus and method
Assignee: Individual
•
Filing: 1964-04-01
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Granted: 1966-04-05
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Illo Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/83; G01N27/84; B; B21; B21B; B21B39/00; B21B39/20; B21B39/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF INSPECTING AND DETERMINING FLAWS IN BILLETS COMPRISING SUPPORTING A PLURALITY OF BILLETS IN PARALLEL AND ANGULARLY INCLINED POSITIONS, DRENCHING SAID BILLETS WITH A LIQUID HAVING MAGNETIZABLE PARTICLES THEREIN, ROTATING THE BILLETS THROUGH TWO QUATER-TURNS, THEN REPEATING SAID DRENCHING, PASSING ELECTRIC CURRENT THROUGH EACH BILLET TO MAGNETIZE THE SAID PARTICLES DEPOSITED THEREON BY DRENCHING, CONVEYING SIMULTANEOUSLY THE COATED
Claim 2
Independent Claim
60 words
A METHOD OF INSPECTING AND DETERMINING FLAWS IN BILLETS COMPRISING SUPPORTING A PLURALITY OF BILLETS IN PARALLEL AND ANGULARLY INCLINED POSITIONS, DRENCHING SAID BILLETS WITH A LIQUID HAVING MAGNETIZABLE PARTICLES THEREIN, ROTATING THE BILLETS THROUGH TWO QUATER-TURNS, THEN REPEATING SAID DRENCHING, PASSING ELECTRIC CURRENT THROUGH EACH BILLET TO MAGNETIZE THE SAID PARTICLES DEPOSITED THEREON BY DRENCHING, CONVEYING SIMULTANEOUSLY THE COATED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |