Patent US476979A successfully refreshed from Google Patents.
US476979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal apparatus
Assignee: —
•
Filing: —
•
Granted: 1892-06-14
•
Expires: 1909-06-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:27
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/06; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2109
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) | 1895-06-14 | 1895-12-14 | 1896-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1899-06-14 | 1899-12-14 | 1900-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1903-06-15 | 1903-12-15 | 1904-06-15 | $7700.00 | Window Closed / Lapsed |