US2990851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple valve and connection
Assignee: MCEVOY CO
•
Filing: 1958-06-23
•
Granted: 1961-07-04
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Jackson
- 👤 Allen F Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:39
CPC Classifications
F; F16; F16L; F16L39/00; F16L39/06; F16L55/00; F16L55/10; Y; Y10; Y10T; Y10T137/00; Y10T137/402; Y10T137/5109; Y10T137/598; Y10T137/6154; Y10T137/8593; Y10T137/87153; Y10T137/87161; Y10T137/9029
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |