US2458547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for oil temperature control units
Assignee: Individual
•
Filing: 1944-12-08
•
Granted: 1949-01-11
•
Expires: 1964-12-08
Abstract
No abstract record available.
Inventors
- 👤 Worth Weldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:40
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/1366
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2332995A
Cited
US2352704A
Cited
US2307300A
Cited
US2275576A
Cited
US2323994A
Cited
US2326096A
Cited
US2387426A
Cited
US2322047A
Cited
US2359448A
Cited
US2353577A
Cited
US2344207A
Cited
US2396053A
Cited
US2379109A
Cited
US2417708A
Cited
US2405831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |