US2981915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot actuated multiple rheostat control
Assignee: Individual
•
Filing: 1960-05-16
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Granted: 1961-04-25
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Sonstegard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:51
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/16; H01C10/20; H04; H04B; H04B3/00; H04B3/54; G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G2009/0474; G05G2009/04748
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |