US3097337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for electroluminescent non-destructive flaw detection
Assignee: Individual
•
Filing: 1960-05-17
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Granted: 1963-07-09
•
Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Polin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/60; G01N27/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN A DEVICE FOR THE NON-DESTRUCTIVE TESTING FOR LAWS IN MATERIAL TO WHICH AN ELECTRO-LUMINESCENT PHOSPHOR HAS BEEN APPLIED IN FINELY DIVIDED FROM CAPABLE OF PENETRATING HAIR LINE CRACKS AND OTHER FLAWS IN THE SURFACE OF THE MATERIAL A FIXED ELECTRODE CONSTRUCTED TO BE APPLIED TO A PIECE OF MATERIAL UNDER TEST AT SELECTED POINTS A MOVABLE PROBE, CIRCUIT MEANS CONNECTING SAID ELECTRODE AND SAID
Claim 2
Dependent Claim
65 words
IN A DEVICE FOR THE NON-DESTRUCTIVE TESTING FOR LAWS IN MATERIAL TO WHICH AN ELECTRO-LUMINESCENT PHOSPHOR HAS BEEN APPLIED IN FINELY DIVIDED FROM CAPABLE OF PENETRATING HAIR LINE CRACKS AND OTHER FLAWS IN THE SURFACE OF THE MATERIAL A FIXED ELECTRODE CONSTRUCTED TO BE APPLIED TO A PIECE OF MATERIAL UNDER TEST AT SELECTED POINTS A MOVABLE PROBE, CIRCUIT MEANS CONNECTING SAID ELECTRODE AND SAID
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |