US2451876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio-frequency joint
Assignee: Individual
•
Filing: 1943-06-05
•
Granted: 1948-10-19
•
Expires: 1963-06-05
Abstract
No abstract record available.
Inventors
- 👤 Winfield W Salisbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:12
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/06; H01P5/00; H01P5/02; H01P5/022; H01P5/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155508A
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US2226479A
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US2190668A
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US2332952A
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US2351895A
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US2401344A
Cited
US2321521A
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US2434925A
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US2407318A
Cited
US2404086A
Cited
US2400777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |