Patent US2347261A successfully refreshed from Google Patents.
US2347261A
Expired / Lapsed
US
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Power transmission
Assignee: Vickers Inc
•
Filing: 1939-09-23
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Granted: 1944-04-25
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Expires: 1959-09-23
Abstract
No abstract record available.
Inventors
- 👤 Ferris T Harrington
- 👤 Twyman L Raymond
- 👤 Robinson James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:42
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/05; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/20553; F15B2211/30; F15B2211/305; F15B2211/3056; F15B2211/30565; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/327; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/515; F15B2211/5153; F15B2211/5157; F15B2211/52; F15B2211/528; F15B2211/55; F15B2211/70; F15B2211/755
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) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |