US2958197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operator for valve with rotatable stem or the like
Assignee: Individual
•
Filing: 1956-08-20
•
Granted: 1960-11-01
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Lynn T Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:10
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/14; F16K31/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US616211A
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CA473532A
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US999371A
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US1182967A
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US1329137A
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US1454396A
Cited
US1616841A
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US2278557A
Cited
US2643677A
Cited
US2595131A
Cited
US2722102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |