US531884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thill-coupling
Assignee: —
•
Filing: —
•
Granted: 1895-01-01
•
Expires: 1912-01-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:53
CPC Classifications
B; B62; B62C; B62C5/00; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32819; Y10T403/32836
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) | 1897-12-31 | 1898-07-02 | 1899-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-01-01 | 1902-07-03 | 1903-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-01-01 | 1906-07-03 | 1907-01-02 | $7700.00 | Window Closed / Lapsed |