US2969218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Bastian Blessing Co
•
Filing: 1956-06-22
•
Granted: 1961-01-24
•
Expires: 1976-06-22
Abstract
No abstract record available.
Inventors
- 👤 Harry N Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:18
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875438A
Cited
US1733180A
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US1861420A
Cited
US2223651A
Cited
US2298632A
Cited
US2360734A
Cited
US2457492A
Cited
US2726006A
Cited
US2646246A
Cited
USRE24440E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |