US2205976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed power unit
Assignee: US Electrical Motors Inc
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Filing: 1934-10-08
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Granted: 1940-06-25
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Expires: 1954-10-08
Abstract
No abstract record available.
Inventors
- 👤 Heyer Don
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:25
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/0412; F16H63/00; F16H63/02; F16H63/04; F16H63/06; F16H63/067; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H9/16; F16H9/18; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
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) | 1943-06-25 | 1943-12-25 | 1944-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-25 | 1947-12-25 | 1948-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-25 | 1951-12-25 | 1952-06-25 | $7700.00 | Window Closed / Lapsed |