US3147850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator flight
Assignee: Simpson Herbert Corp
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Filing: 1961-12-07
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Granted: 1964-09-08
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Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 Ronceray Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:16
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; B65G15/44; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
AN ELEVATOR FLIGHT OF THE TYPE ADAPTED FOR USE IN AN ELEVATOR FOR ELEVATING MATERIAL SUCH AS SAND OR THE LIKE AND HAVING AN ENDLESS CONVEYOR BELT; SAID FLIGHT COMPRISING A FLEXIBLE BACKING ATTACHED TO AND EXTENDING OUTWARDLY FROM THE CONVEYOR BELT, A RIGID BRACE ATTACHED TO AND EXTENDING OUTWARDLY FROM SAID CONVEYOR BELT AND SPACED FROM SAID BACKING, AND A SCRAPER SECURED BE-
Claim 2
Dependent Claim
64 words
AN ELEVATOR FLIGHT OF THE TYPE ADAPTED FOR USE IN AN ELEVATOR FOR ELEVATING MATERIAL SUCH AS SAND OR THE LIKE AND HAVING AN ENDLESS CONVEYOR BELT; SAID FLIGHT COMPRISING A FLEXIBLE BACKING ATTACHED TO AND EXTENDING OUTWARDLY FROM THE CONVEYOR BELT, A RIGID BRACE ATTACHED TO AND EXTENDING OUTWARDLY FROM SAID CONVEYOR BELT AND SPACED FROM SAID BACKING, AND A SCRAPER SECURED BE-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |