US3411012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared absorption device for detecting small changes in the isotopic purity of water
Assignee: Atomic Energy of Canada Ltd AECL
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Filing: 1965-07-09
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Granted: 1968-11-12
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 John G Bayly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/02; G21C17/022; C; C01; C01B; C01B5/00; C01B5/02; E; E21; E21F; E21F13/00; E21F13/08; E21F13/086; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274; G01N21/276; G01N21/31; G01N21/314; G01N21/35; G01N21/37; G01N33/00; G01N33/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |