US454646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve of pumps for moving gaseous bodies
Assignee: —
•
Filing: —
•
Granted: 1891-06-23
•
Expires: 1908-06-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:19
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/12; F04B53/125; F04B53/126; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7935
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) | 1894-06-22 | 1894-12-22 | 1895-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-06-22 | 1898-12-22 | 1899-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-06-23 | 1902-12-23 | 1903-06-24 | $7700.00 | Window Closed / Lapsed |