US2706547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transmitting rotational power by use of powdery material
Assignee: Individual
•
Filing: 1947-05-07
•
Granted: 1955-04-19
•
Expires: 1967-05-07
Abstract
No abstract record available.
Inventors
- 👤 Ranzi Ubaldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
F; F16; F16D; F16D37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1095132A
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US973893A
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US1192233A
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US1327080A
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DE448977C
Cited
US1746148A
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US1901988A
Cited
US1862045A
Cited
US1887610A
Cited
US2287498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |