US3499153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nondestructive testing of materials by infrared radiation
Assignee: Barnes Engineering Co
•
Filing: 1967-01-09
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Granted: 1970-03-03
•
Expires: 1987-01-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Stanfill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:32
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2922887A
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US2901630A
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US3069893A
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US3161771A
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US3228282A
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US3206603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |