Patent US710607A successfully refreshed from Google Patents.
Patent US2967291A successfully refreshed from Google Patents.
Patent US3473641A successfully refreshed from Google Patents.
US412985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic conveyer
Assignee: —
•
Filing: —
•
Granted: 1889-10-15
•
Expires: 1906-10-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:49
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/36; B65G51/40; Y; Y10; Y10S; Y10S138/00; Y10S138/04; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87788; Y10T137/87796
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) | 1892-10-14 | 1893-04-15 | 1893-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-10-14 | 1897-04-15 | 1897-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-10-15 | 1901-04-16 | 1901-10-16 | $7700.00 | Window Closed / Lapsed |