Patent US2840090A successfully refreshed from Google Patents.
US2840090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor
Assignee: FMC Corp
•
Filing: 1954-04-22
•
Granted: 1958-06-24
•
Expires: 1974-04-22
Abstract
No abstract record available.
Inventors
- 👤 John A Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:32
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1795450A
Cited
US1951046A
Cited
US1760369A
Cited
US1958322A
Cited
US2166644A
Cited
US2241978A
Cited
US2566417A
Cited
US2662631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |