US2630550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas tube ionizer and process
Assignee: Individual
•
Filing: 1948-03-20
•
Granted: 1953-03-03
•
Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Geohegan William Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:05
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/30; H03; H03K; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1893638A
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US2027399A
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US2252189A
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US2478904A
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US2402372A
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US2395850A
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US2473831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |