US3448283A
Expired / Lapsed
US
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Radiation pyrometer system substantially independent of ambient temperature changes
Assignee: Leeds and Northrup Co
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Filing: 1965-04-28
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Granted: 1969-06-03
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Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Higley
- 👤 Donald Robertson
- 👤 Franklin K Schroyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:01
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/28; G01J5/60; G01J5/602
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |