US2764995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding plug valve
Assignee: Gerber Products Co
•
Filing: 1952-08-18
•
Granted: 1956-10-02
•
Expires: 1972-08-18
Abstract
No abstract record available.
Inventors
- 👤 Robert F Krupp
- 👤 Marvin H Wardell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1004845A
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US1435921A
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US1665306A
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US1850850A
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US1805106A
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US2014642A
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US2290251A
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US2380631A
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US2374336A
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US2651320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |