US2949028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ultrasonic materials testing
Assignee: Individual
•
Filing: 1955-11-03
•
Granted: 1960-08-16
•
Expires: 1975-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ivan L Joy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/44; G01N29/48; G01N29/04; G01N29/07; G01N29/11; G01N29/12; G01N29/34; G01N29/348; G01N29/36; G01N29/38; G01N29/42; G01N2291/00; G01N2291/04; G01N2291/044; Y; Y10; Y10S; Y10S367/00; Y10S367/901; Y10S367/903
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |