US3445071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for winding a precision resistor
Assignee: Northrop Grumman Systems Corp
•
Filing: 1967-06-14
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Granted: 1969-05-20
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Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Charles F Kezer
- 👤 Thomas P Zingarelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:30
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49004; Y10T29/49082; Y10T29/49087; Y10T29/49096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3128956A
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US2964252A
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US3166104A
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US2989256A
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US3181061A
Cited
US3237657A
Cited
US3203633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |