US2821632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing ions of vaporizable materials
Assignee: Individual
•
Filing: 1944-09-25
•
Granted: 1958-01-28
•
Expires: 1964-09-25
Abstract
No abstract record available.
Inventors
- 👤 Byron T Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:51
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/12; H01J49/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011922A
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US2061254A
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US2244672A
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US2225047A
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US2257794A
Cited
US2355658A
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US2300436A
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US2373151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |