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 00:15
CPC Classifications
F; F16; F16D; F16D37/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1095132A
Cited
US973893A
Cited
US1192233A
Cited
US1327080A
Cited
DE448977C
Cited
US1746148A
Cited
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 |