Patent US8930A successfully refreshed from Google Patents.
US8930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in lightning-rods
Assignee: —
•
Filing: —
•
Granted: 1852-05-04
•
Expires: 1869-05-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:47
CPC Classifications
H; H02; H02G; H02G13/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12875; Y10T428/12903; Y10T428/12917; Y10T428/12924
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1855-05-04 | 1855-11-03 | 1856-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1859-05-04 | 1859-11-03 | 1860-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1863-05-04 | 1863-11-03 | 1864-05-04 | $7700.00 | Window Closed / Lapsed |