US2873337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: BOURNS LAB Inc
•
Filing: 1955-11-14
•
Granted: 1959-02-10
•
Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Marlan E Bourns
- 👤 Marvin E Harrison
- 👤 Wilbur T Hardison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; H; H01; H01C; H01C1/00; H01C1/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1321873A
Cited
US686245A
Cited
US1007005A
Cited
US1630338A
Cited
US1880239A
Cited
US2115135A
Cited
US2486931A
Cited
US2357433A
Cited
CH240672A
Cited
US2366509A
Cited
US2687266A
Cited
US2506482A
Cited
US2594796A
Cited
US2676778A
Cited
US2687463A
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 |