Patent US2452178A successfully refreshed from Google Patents.
US2452178A
Expired / Lapsed
US
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Power transmission system
Assignee: CHAS DREXLER Co Inc
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Filing: 1944-05-25
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Granted: 1948-10-26
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Expires: 1964-05-25
Abstract
No abstract record available.
Inventors
- 👤 Dalmar T Brownlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:12
CPC Classifications
G; G05; G05G; G05G15/00; G05G15/08; F; F16; F16H; F16H1/00; F16H1/28; F16H35/00; F16H35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1920956A
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US2116774A
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US2006896A
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GB496727A
Cited
US2279216A
Cited
US2317490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |