US2873339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: BOURNS LAB Inc
•
Filing: 1956-11-19
•
Granted: 1959-02-10
•
Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Marlan E Bourns
- 👤 Alan G Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2180588A
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US2373292A
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US2427297A
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US2501674A
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US2746289A
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US2551793A
Cited
US2633510A
Cited
US2727115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |