Patent US2661949A successfully refreshed from Google Patents.
US2661949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet piler end stop structure
Assignee: Armco Inc
•
Filing: 1949-04-15
•
Granted: 1953-12-08
•
Expires: 1969-04-15
Abstract
No abstract record available.
Inventors
- 👤 George F Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:35
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/002; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1241671A
Cited
US1275506A
Cited
US1387602A
Cited
US1923458A
Cited
US2142243A
Cited
US2228887A
Cited
US2235347A
Cited
US2381633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |