US2429561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision coupling
Assignee: BUFFALO MACHINERY CO Inc
•
Filing: 1943-11-19
•
Granted: 1947-10-21
•
Expires: 1963-11-19
Abstract
No abstract record available.
Inventors
- 👤 Miller Frank Alden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:37
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/02; F16D7/024; F16D7/025; F16D7/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1241117A
Cited
US1503446A
Cited
AU1971034A
Cited
GB533842A
Cited
US2256062A
Cited
US2260593A
Cited
US2333980A
Cited
US2323355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |