US2072403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve gear for a liquid pump operating motor
Assignee: Individual
•
Filing: 1935-08-08
•
Granted: 1937-03-02
•
Expires: 1955-08-08
Abstract
No abstract record available.
Inventors
- 👤 Christian A Lausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2554; Y10T137/2931; Y10T137/3115; Y10T137/3118; Y10T137/7722; Y10T137/7781
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) | 1940-03-01 | 1940-08-31 | 1941-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-01 | 1944-08-31 | 1945-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-01 | 1948-08-31 | 1949-03-02 | $7700.00 | Window Closed / Lapsed |