US2452178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission system
Assignee: CHAS DREXLER Co Inc
•
Filing: 1944-05-25
•
Granted: 1948-10-26
•
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 12:24
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US443259A
Cited
US1396426A
Cited
US1747594A
Cited
US1943854A
Cited
US1829249A
Cited
US1920956A
Cited
US2116774A
Cited
US1951424A
Cited
US2006896A
Cited
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 |