Patent US2932808A successfully refreshed from Google Patents.
US2932808A
Expired / Lapsed
US
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Adjustable electrical instruments
Assignee: Bourns Inc
•
Filing: 1957-05-20
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Granted: 1960-04-12
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Marlan E Bourns
- 👤 Carl N Boode
- 👤 Edward D O'brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:31
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42; H01C10/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US686245A
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US1371287A
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US1491345A
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US2178241A
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US2248047A
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US2714184A
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US2714147A
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US2807695A
Cited
US2777925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |