Patent US2701047A successfully refreshed from Google Patents.
US2701047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction tread ramp and conveyer
Assignee: Standard Oil Co
•
Filing: 1951-07-21
•
Granted: 1955-02-01
•
Expires: 1971-07-21
Abstract
No abstract record available.
Inventors
- 👤 Carl J Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:07
CPC Classifications
B; B65; B65G; B65G11/00; B65G11/02; B65G11/023
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1084376A
Cited
US223410A
Cited
US665022A
Cited
US847509A
Cited
US1179602A
Cited
US1298489A
Cited
US1737819A
Cited
DE561616C
Cited
US1979466A
Cited
US1883528A
Cited
US2169772A
Cited
US2155173A
Cited
US2427958A
Cited
US2230038A
Cited
US2341386A
Cited
US2387918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |