US3385313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve
Assignee: Individual
•
Filing: 1966-01-03
•
Granted: 1968-05-28
•
Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Okada Masao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/201; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038; Y10T137/6041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1488296A
Cited
FR529006A
Cited
FR23939E
Cited
US1738450A
Cited
US1941839A
Cited
US2661926A
Cited
US3037738A
Cited
US3014690A
Cited
US3164362A
Cited
US3226082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |