US2685973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: —
•
Filing: —
•
Granted: 1954-08-10
•
Expires: 1971-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:12
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3405; E02F3/3408
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR35087E
Cited
US947964A
Cited
FR649020A
Cited
US2242860A
Cited
US2348899A
Cited
US2383686A
Cited
US2412570A
Cited
US2412323A
Cited
US2418251A
Cited
US2407593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |