US501450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sylvania
Assignee: —
•
Filing: —
•
Granted: 1893-07-11
•
Expires: 1910-07-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; H01H13/183
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) | 1896-07-10 | 1897-01-09 | 1897-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-07-11 | 1901-01-10 | 1901-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-07-11 | 1905-01-10 | 1905-07-12 | $7700.00 | Window Closed / Lapsed |