US3400266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared radiometric microscope
Assignee: Barnes Engineering Co
•
Filing: 1964-12-02
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Granted: 1968-09-03
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 John R Yoder
- 👤 Richard F Leftwich
- 👤 Donald W Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:47
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/08; G01J5/0803; G01J5/0805; G02; G02B; G02B21/00; G02B21/0096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3081632A
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US3057200A
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US3297873A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |