Patent US2870302A successfully refreshed from Google Patents.
US2870302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potentiometers
Assignee: BOURNS LAB Inc
•
Filing: 1955-11-07
•
Granted: 1959-01-20
•
Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Marlan E Bourns
- 👤 Marvin E Harrison
- 👤 Edward J Goeppinger
- 👤 Donald L Gaa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/12; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |