US2457210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch
Assignee: Barbour Stockwell Co
•
Filing: 1947-10-01
•
Granted: 1948-12-28
•
Expires: 1967-10-01
Abstract
No abstract record available.
Inventors
- 👤 Roger T Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:52
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/02; F16D23/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US776404A
Cited
US1041010A
Cited
US835721A
Cited
US1008309A
Cited
US1096052A
Cited
US1879546A
Cited
US2017997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |