US2557571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor structure and method of manufacture
Assignee: Individual
•
Filing: 1946-03-22
•
Granted: 1951-06-19
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 David T Siegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297779A
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US761204A
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US1439123A
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US1680681A
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US1842433A
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US2327935A
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US2357241A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |