US3566696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve stem
Assignee: Individual
•
Filing: 1968-12-24
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Granted: 1971-03-02
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Expires: 1988-12-24
Abstract
Abstract A VALVE STEM OPERATIVE OF A VALVULAR ASSEMBLY WHICH CARRIES A FLUID GAUGE ON THE "HANDLE END" THEREOF. THE STEM IS BORED THROUGH TO ADMIT FLUID THERETHROUGH. FOR REGISTRATION OF THE CONDITION THEREOF ON SAID GAUGE, AND SAID GAUGE CONSTITUTES THE MANIPULATING HANDWHEEL AS WELL.
Inventors
- 👤 William D Maddison
- 👤 James J De Lade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; F16L41/06; F16L41/065; F25; F25B; F25B2345/00; F25B2345/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |