Patent US2486644A successfully refreshed from Google Patents.
US2486644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: Mueller Co
•
Filing: 1946-09-16
•
Granted: 1949-11-01
•
Expires: 1966-09-16
Abstract
No abstract record available.
Inventors
- 👤 Lorin E Grosboll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:35
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/121; G05D23/122; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
NL38935C
Cited
US1008816A
Cited
US1356732A
Cited
US2035512A
Cited
US1927036A
Cited
US1949559A
Cited
US1935978A
Cited
US2074292A
Cited
GB459917A
Cited
US2223115A
Cited
US2242358A
Cited
US2311110A
Cited
US2351190A
Cited
US2400615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |