US3464447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve manifold
Assignee: MARINE ENGINE SPECIALTIES CORP
•
Filing: 1967-07-18
•
Granted: 1969-09-02
•
Expires: 1987-07-18
Abstract
No abstract record available.
Inventors
- 👤 Norman Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:36
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1756830A
Cited
US1755451A
Cited
US1945684A
Cited
US2163591A
Cited
US2275608A
Cited
US2768506A
Cited
US3039489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |