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Patent US3435239A successfully refreshed from Google Patents.
US3435239A
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Radiation absorption tester using rc network to simulate absorption function
Assignee: Pfizer Health AB
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Filing: 1965-10-13
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Granted: 1969-03-25
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Nils G Stalberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:44
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01J; G01J1/00; G01J1/10; G01J1/16; G01J1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2668284A
Cited
US3109930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |