Patent US2284565A successfully refreshed from Google Patents.
US2284565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain
Assignee: UNION CHAIN AND Manufacturing Co
•
Filing: 1940-07-19
•
Granted: 1942-05-26
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Expires: 1960-07-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Emmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:44
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; F16G13/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-05-25 | 1945-11-24 | 1946-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-25 | 1949-11-24 | 1950-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-25 | 1953-11-24 | 1954-05-26 | $7700.00 | Window Closed / Lapsed |