Patent US2559077A successfully refreshed from Google Patents.
US2559077A
Expired / Lapsed
US
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Resistance element and method of preparing same
Assignee: Individual
•
Filing: 1946-07-01
•
Granted: 1951-07-03
•
Expires: 1966-07-01
Abstract
No abstract record available.
Inventors
- 👤 Carl G Westerberg
- 👤 Howard W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:52
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; H05B3/20; H05B3/34; H05B3/342; H05B3/565; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/013; H05B2203/017; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US795747A
Cited
US1869629A
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US2258219A
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US2377600A
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US2393100A
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US2386095A
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US2460795A
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US2495199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |