US2820609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winch structure
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1953-11-20
•
Granted: 1958-01-21
•
Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 George E Bock
- 👤 James H Graas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/844; E02F3/848; B; B66; B66D; B66D1/00; B66D1/02; B66D1/14; E02F3/7609; E02F9/00; E02F9/20; E02F9/2016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US806534A
Cited
US1651959A
Cited
US1916732A
Cited
US2220655A
Cited
US2349494A
Cited
US2343894A
Cited
US2401518A
Cited
US2522377A
Cited
US2596203A
Cited
US2558254A
Cited
US2630299A
Cited
US2637526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |