US2780776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linearity tester
Assignee: Bourns Inc
•
Filing: 1953-03-06
•
Granted: 1957-02-05
•
Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward J Goeppinger
- 👤 Robert M Whitehorn
- 👤 Marlan E Bourns
- 👤 Marvin E Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114330A
Cited
GB581276A
Cited
US2482196A
Cited
US2527138A
Cited
US2568465A
Cited
US2653207A
Cited
US2665355A
Cited
US2658131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |