Patent US2421286A successfully refreshed from Google Patents.
US2421286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulator tie for line conductors
Assignee: Copperweld Steel Co
•
Filing: 1945-03-24
•
Granted: 1947-05-27
•
Expires: 1965-03-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Pyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:22
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/20; H01B17/22; Y; Y10; Y10S; Y10S174/00; Y10S174/12; Y10S57/00; Y10S57/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |