US3498132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiometer apparatus
Assignee: National Research Development Corp UK
•
Filing: 1968-02-23
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Granted: 1970-03-03
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Expires: 1988-02-23
Abstract
No abstract record available.
Inventors
- 👤 Stanley Desmond Smith
- 👤 John Theodore Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/60; G01J1/00; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3504; G01N21/47; G01N21/49; G01N21/53; G01N21/538
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212211A
Cited
US2674155A
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US2677277A
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US2909924A
Cited
US2978589A
Cited
US3103586A
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 |