US2649217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Jones and Laughlin Steel Corp
•
Filing: 1949-11-15
•
Granted: 1953-08-18
•
Expires: 1969-11-15
Abstract
No abstract record available.
Inventors
- 👤 Edward J Mertes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:29
CPC Classifications
B; B65; B65G; B65G13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596322A
Cited
GB174537A
Cited
US1751717A
Cited
US1818289A
Cited
US2061495A
Cited
US2186463A
Cited
US2379094A
Cited
US2445614A
Cited
US2536151A
Cited
US2432182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |