US2920775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load clamps for an industrial truck
Assignee: Otis Elevator Co
•
Filing: 1956-05-09
•
Granted: 1960-01-12
•
Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Frank J Schenkelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:40
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2456320A
Cited
US2571550A
Cited
US2650036A
Cited
US2663443A
Cited
GB717358A
Cited
US2754018A
Cited
US2795346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |