US3477461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioisotope injection device for measurement of fluid flow
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1966-01-19
•
Granted: 1969-11-11
•
Expires: 1986-01-19
Abstract
No abstract record available.
Inventors
- 👤 Colin G Clayton
- 👤 Ramon Spackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:07
CPC Classifications
G; G21; G21H; G21H5/00; G21H5/02; B; B01; B01F; B01F25/00; B01F25/20; B01F25/21; B01F25/30; B01F25/31; B01F25/313; B01F25/3132; B01F25/32; G05; G05D; G05D11/00; G05D11/006; B01F23/00; B01F23/40; B01F25/60; B01F35/00; B01F35/71; B01F35/715; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2233965A
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US2843138A
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US2893412A
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US2835481A
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US3342193A
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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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |