US2902885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control mechanism
Assignee: Standard Oil Co
•
Filing: 1955-05-31
•
Granted: 1959-09-08
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Lawrence T Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
G; G05; G05G; G05G11/00; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/38; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18592; Y10T74/19; Y10T74/19023; Y10T74/1914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |