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US2673448A
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Hydraulic variable speed drive
Assignee: International Cigar Machinery Co
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Filing: 1949-10-06
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Granted: 1954-03-30
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Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Henry H Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:34
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/18; F04C14/20; F16; F16H; F16H39/00; F16H39/04; F16H39/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1190139A
Cited
GB221749A
Cited
US2016315A
Cited
US2222144A
Cited
US2368223A
Cited
US2256459A
Cited
US2434546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |