US3377844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining the amount of leakage from chambers
Assignee: European Atomic Energy Community Euratom
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Filing: 1965-06-07
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Granted: 1968-04-16
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Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Gandolfo Jean-Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/015; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/34
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |