Patent US3515876A successfully refreshed from Google Patents.
US3515876A
Expired / Lapsed
US
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Method and apparatus for positioning a radioactive standard in a radioactive sample counting apparatus
Assignee: Revvity Health Sciences Inc
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Filing: 1967-04-10
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Granted: 1970-06-02
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Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Roy E Smith
- 👤 Robert E Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/08; G01T1/00; G01T1/16; G01T1/20; G01T1/204; G21; G21G; G21G4/00; G21G4/04; G21G4/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123713A
Cited
US3188468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |