US2186482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground rod
Assignee: Copperweld Steel Co
•
Filing: 1938-07-16
•
Granted: 1940-01-09
•
Expires: 1958-07-16
Abstract
No abstract record available.
Inventors
- 👤 Robert J Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/66; Y; Y10; Y10S; Y10S411/00; Y10S411/914; Y10T; Y10T403/00; Y10T403/57; Y10T403/5746; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12389; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-01-08 | 1943-07-10 | 1944-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-08 | 1947-07-10 | 1948-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-08 | 1951-07-10 | 1952-01-09 | $7700.00 | Window Closed / Lapsed |