Patent US564351A successfully refreshed from Google Patents.
US564351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensator for signals
Assignee: —
•
Filing: —
•
Granted: 1896-07-21
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Expires: 1913-07-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
B; B61; B61L; B61L19/00; B61L19/02; Y; Y10; Y10S; Y10S256/00; Y10S256/01; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2146
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) | 1899-07-21 | 1900-01-20 | 1900-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1903-07-22 | 1904-01-21 | 1904-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1907-07-22 | 1908-01-21 | 1908-07-22 | $7700.00 | Window Closed / Lapsed |