Patent US3533280A successfully refreshed from Google Patents.
US3533280A
Expired / Lapsed
US
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Ultrasonic material tester
Assignee: Automation Industries Inc
•
Filing: 1967-02-06
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Granted: 1970-10-13
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Expires: 1987-02-06
Abstract
No abstract record available.
Inventors
- 👤 William C Mcgaughey
- 👤 Donald W Munger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:46
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/30; G01N29/04; G01N29/06; G01N29/0609; G01N29/0645; Y; Y10; Y10S; Y10S73/00; Y10S73/901
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |