US2886681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor construction
Assignee: BOURNS LAB Inc
•
Filing: 1956-05-03
•
Granted: 1959-05-12
•
Expires: 1976-05-03
Abstract
No abstract record available.
Inventors
- 👤 Marlan E Bourns
- 👤 Marvin E Harrison
- 👤 Donald L Gaa
- 👤 Richard O Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:12
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1955251A
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US2157777A
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US2284097A
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US2431366A
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US2497484A
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US2572651A
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US2646489A
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US2706230A
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US2780850A
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US2751475A
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US2823288A
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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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |