US2699126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic valve for controlling the flow of air to pneumatic operating mechanism in railway dump cars
Assignee: Magor Car Corp
•
Filing: 1949-07-07
•
Granted: 1955-01-11
•
Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Einar O Lunde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:02
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; F16K31/1221; B; B61; B61D; B61D9/00; B61D9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US940815A
Cited
US1022758A
Cited
US1144758A
Cited
US1489138A
Cited
US1972042A
Cited
US1884458A
Cited
US2471160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |