US2433150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed transmission
Assignee: STERLING ELECTRIC MOTORS Inc
•
Filing: 1944-08-14
•
Granted: 1947-12-23
•
Expires: 1964-08-14
Abstract
No abstract record available.
Inventors
- 👤 Bernhard N Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
F; F16; F16H; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H9/16; F16H2009/166
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US583403A
Cited
US1929836A
Cited
US1993547A
Cited
US1926269A
Cited
US2205976A
Cited
US2207073A
Cited
US2185545A
Cited
US2293617A
Cited
US2248948A
Cited
US2251488A
Cited
US2293638A
Cited
US2308852A
Cited
US2342604A
Cited
US2348940A
Cited
US2351148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |