Patent US936233A successfully refreshed from Google Patents.
US936233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-valve.
Assignee: HOWE H FISHER
•
Filing: 1907-09-05
•
Granted: 1909-10-05
•
Expires: 1927-09-05
Abstract
No abstract record available.
Inventors
- 👤 William G Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:22
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/32; F16; F16K; F16K15/00; F16K15/02; F16K15/06; Y; Y10; Y10S; Y10S137/00; Y10S137/902; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/6307; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915
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) | 1912-10-04 | 1913-04-05 | 1913-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-10-04 | 1917-04-05 | 1917-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-10-04 | 1921-04-05 | 1921-10-05 | $7700.00 | Window Closed / Lapsed |