US2498723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitive gas tube pulse receiving and repeating system
Assignee: International Standard Electric Corp
•
Filing: 1946-04-06
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Granted: 1950-02-28
•
Expires: 1966-04-06
Abstract
No abstract record available.
Inventors
- 👤 Clement M Theillaumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:30
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/44; H04Q1/444; H04Q1/446; H04Q1/4465; H04Q1/442; H04Q1/4423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB323804A
Cited
US2047729A
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US2029693A
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US2045402A
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US2056235A
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US2091551A
Cited
US2222248A
Cited
US2253621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |