US2626033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal servo clutch
Assignee: Individual
•
Filing: 1948-04-03
•
Granted: 1953-01-20
•
Expires: 1968-04-03
Abstract
No abstract record available.
Inventors
- 👤 Howard B Lewis
- 👤 Jr Howard Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:30
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/14; F16D43/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB206699A
Cited
GB273918A
Cited
US1863382A
Cited
DE579383C
Cited
US2179945A
Cited
GB533096A
Cited
US2230293A
Cited
US2275046A
Cited
US2286461A
Cited
US2422121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |