US2505006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous discharge device
Assignee: International Standard Electric Corp
•
Filing: 1947-10-03
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Granted: 1950-04-25
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Reeves Alec Harley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:46
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/042; H01J2893/00; H01J2893/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404920A
Cited
US2443407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |