US2428117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttling and unloading valve
Assignee: Borg Warner Corp
•
Filing: 1942-12-12
•
Granted: 1947-09-30
•
Expires: 1962-12-12
Abstract
No abstract record available.
Inventors
- 👤 Kanuch John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
B; B64; B64D; B64D47/00; Y; Y10; Y10T; Y10T137/00; 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)
US767138A
Cited
US1046884A
Cited
US947021A
Cited
US1142289A
Cited
US1224221A
Cited
US1539228A
Cited
US1987666A
Cited
US2194749A
Cited
US2232267A
Cited
US2308583A
Cited
US2402499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |