Patent US2494521A successfully refreshed from Google Patents.
US2494521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable reel
Assignee: Republic Steel Corp
•
Filing: 1945-09-15
•
Granted: 1950-01-10
•
Expires: 1965-09-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Schaefer
- 👤 Ray W Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:30
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/22; B65H75/2245; B65H75/04; B65H75/08; B65H75/14; B65H75/2254; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5134
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1702242A
Cited
US962452A
Cited
US1981139A
Cited
US1849977A
Cited
US1920422A
Cited
US2058150A
Cited
US2058152A
Cited
US2115481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |