US2069645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for discharging water from steam engine cylinders
Assignee: Individual
•
Filing: 1935-04-17
•
Granted: 1937-02-02
•
Expires: 1955-04-17
Abstract
No abstract record available.
Inventors
- 👤 Cardew Cornelius Ambrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:10
CPC Classifications
F; F01; F01B; F01B25/00; F01B2250/00; F01B2250/004; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3102; Y10T137/3105; Y10T137/7722; Y10T137/7738; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7925
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) | 1940-02-02 | 1940-08-03 | 1941-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-02 | 1944-08-03 | 1945-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-02 | 1948-08-03 | 1949-02-02 | $7700.00 | Window Closed / Lapsed |