US2468950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowplow
Assignee: Individual
•
Filing: 1944-12-08
•
Granted: 1949-05-03
•
Expires: 1964-12-08
Abstract
No abstract record available.
Inventors
- 👤 Edward L Wiedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:29
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US439153A
Cited
US763418A
Cited
US1776788A
Cited
US1997001A
Cited
US2061585A
Cited
US2141558A
Cited
US2219159A
Cited
US2333360A
Cited
US2370830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |