US2984101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape method for detecting fatigue cracks
Assignee: Individual
•
Filing: 1957-09-04
•
Granted: 1961-05-16
•
Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 Irene C Minor
- 👤 John A Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:18
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N21/00; G01N21/84; G01N21/88; G01N21/91; G01N2203/00; G01N2203/0014; G01N2203/0021; G01N2203/0058; G01N2203/006; G01N2203/0062; G01N2203/0069; G01N2203/0073; G01N2203/02; G01N2203/026; G01N2203/0262; G01N2203/0278; G01N2203/06; G01N2203/0641; G01N2203/0647
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2186014A
Cited
US2667070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |