US3472270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valves
Assignee: Masheder Design Studies Ltd
•
Filing: 1967-10-30
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Granted: 1969-10-14
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Henry Masheder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:04
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0626; F16K5/0631; F16K5/0636; F16K5/0663; F16K5/0673; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE25471E
Cited
US2837308A
Cited
US2890017A
Cited
US2894715A
Cited
US3132837A
Cited
US3348804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |