Patent US2517061A successfully refreshed from Google Patents.
US2517061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Glenn L Martin Co
•
Filing: 1945-03-09
•
Granted: 1950-08-01
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Stackelberg Yurgen Z Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0712; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T137/86574; Y10T137/8667; Y10T137/86879
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US651334A
Cited
US1111244A
Cited
GB190561A
Cited
US1988545A
Cited
US2132030A
Cited
US2297817A
Cited
US2360733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |