US2831047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure seal for radio-frequency transmission lines
Assignee: Individual
•
Filing: 1952-01-29
•
Granted: 1958-04-15
•
Expires: 1972-01-29
Abstract
No abstract record available.
Inventors
- 👤 Walter G Wadey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:41
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/085; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2203806A
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US2368566A
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GB572981A
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US2294738A
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US2376725A
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US2469857A
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US2407076A
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US2469474A
Cited
US2449479A
Cited
US2468783A
Cited
US2422190A
Cited
US2449073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |