US2614243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous electric discharge device circuits
Assignee: C-EIGHT LABORATORIES
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Filing: 1950-11-08
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Granted: 1952-10-14
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Expires: 1970-11-08
Abstract
No abstract record available.
Inventors
- 👤 Nelson O Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:03
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; F; F21; F21V; F21V23/00; F21Y; F21Y2103/00
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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |