Patent US2837222A successfully refreshed from Google Patents.
US2837222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission jack
Assignee: WALKER Manufacturing Co OF WISCOSIN
•
Filing: 1951-09-15
•
Granted: 1958-06-03
•
Expires: 1971-09-15
Abstract
No abstract record available.
Inventors
- 👤 Walter C Trautman
- 👤 Robert W Mcnabb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:38
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/36; B66F3/38; B66F3/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1618773A
Cited
US2165095A
Cited
US2368197A
Cited
US2420910A
Cited
US2479100A
Cited
US2474196A
Cited
US2524085A
Cited
US2561242A
Cited
US2583114A
Cited
US2523734A
Cited
US2706052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |