Patent US3378704A successfully refreshed from Google Patents.
US3392573A
Expired / Lapsed
US
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Aerosol filter test device
Assignee: United States Atomic Energy Commission
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Filing: 1966-09-07
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Granted: 1968-07-16
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Expires: 1986-09-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Benson
- 👤 Walter J Smith
- 👤 Norman F Surprenant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:35
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/28; G21C19/30; G21C19/303; B; B01; B01D; B01D2273/00; B01D2273/18; 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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |