US257891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning-rod coupling
Assignee: —
•
Filing: —
•
Granted: 1882-05-16
•
Expires: 1899-05-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/08; E; E21; E21B; E21B17/00; E21B17/02; E21B17/023; Y; Y10; Y10T; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/368; Y10T403/57; Y10T403/5733
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) | 1885-05-15 | 1885-11-14 | 1886-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-05-15 | 1889-11-14 | 1890-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-05-15 | 1893-11-14 | 1894-05-16 | $7700.00 | Window Closed / Lapsed |