US2839079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo-valve
Assignee: Individual
•
Filing: 1955-05-25
•
Granted: 1958-06-17
•
Expires: 1975-05-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley H Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:49
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; B23Q35/36; F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0712; F16K43/00; F16L; F16L55/00; F16L55/10; G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/50; G03B21/52; G05; G05B; G05B11/00; G05B11/60; G21; G21F; G21F7/00; G21F7/06; G21F7/068; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86791; Y10T137/86799; Y10T137/86879; Y10T137/86895; Y10T137/87917; Y10T137/87925; Y10T137/87981; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2563423A
Cited
US1575771A
Cited
US2075600A
Cited
GB586501A
Cited
US2620823A
Cited
US2658523A
Cited
US2696196A
Cited
US2699756A
Cited
US2624585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |