US3034334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of non-destructive analysis for latent defects
Assignee: Magnaflux Corp
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Filing: 1957-01-02
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Granted: 1962-05-15
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Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 Forest Taber De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:50
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE METHOD OF DETECTING BOND DISCONTINUTIES IN A SHEET MEMBER BACKED BY A REINFORCING MEANS BONDED IN A SAID SHEET MEMBER ALONG ONLY SPACED AREAS THEREOF WHICH COMPRISES APPLYING TO AN EXPOSED SURFACE OF SAID SHEET MEMBER A LIQUID COATING OF A DYE DISSOLVED IN A FLOWABLE OIL, AND THEREAFTER APPLYING HEAT TO SAID COATING FOR A TIME SUFFICIENT TO CAUSE SAID DYE TO BECOME CONTRASTINGLY VISIBLE WITH RESPECT TO SAID SURFACE IN THE AREAS AT WHICH SAID BONDING OCCURS TO SAID REINFORCING MEANS.
Claim 2
Independent Claim
84 words
THE METHOD OF DETECTING BOND DISCONTINUTIES IN A SHEET MEMBER BACKED BY A REINFORCING MEANS BONDED IN A SAID SHEET MEMBER ALONG ONLY SPACED AREAS THEREOF WHICH COMPRISES APPLYING TO AN EXPOSED SURFACE OF SAID SHEET MEMBER A LIQUID COATING OF A DYE DISSOLVED IN A FLOWABLE OIL, AND THEREAFTER APPLYING HEAT TO SAID COATING FOR A TIME SUFFICIENT TO CAUSE SAID DYE TO BECOME CONTRASTINGLY VISIBLE WITH RESPECT TO SAID SURFACE IN THE AREAS AT WHICH SAID BONDING OCCURS TO SAID REINFORCING MEANS.
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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |