Patent US3429103A successfully refreshed from Google Patents.
US3429103A
Expired / Lapsed
US
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Charcoal for use in trapping systems
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1966-07-27
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Granted: 1969-02-25
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Expires: 1986-07-27
Abstract
No abstract record available.
Inventors
- 👤 Roland Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:13
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/02; B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/5007; C04B41/5011; C04B41/80; C04B41/81; C04B41/85; G21C; G21C19/00; G21C19/28; G21C19/30; G21C19/303; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2003277A
Cited
US2835343A
Cited
US3318662A
Cited
US3240555A
Cited
US3217471A
Cited
US3216905A
Cited
US3329626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |