US2890807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus and loadengaging elements therefor
Assignee: Otis Elevator Co
•
Filing: 1956-02-06
•
Granted: 1959-06-16
•
Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Russell W Parcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/183
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2226789A
Cited
US2554433A
Cited
US2536151A
Cited
US2557394A
Cited
US2663442A
Cited
US2681162A
Cited
US2768018A
Cited
US2742316A
Cited
US2782066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |