US1632168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for fluid-pressure devices
Assignee: VANCE ENGINEERING Co
•
Filing: 1925-07-23
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Granted: 1927-06-14
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Expires: 1945-07-23
Abstract
No abstract record available.
Inventors
- 👤 Harold W Buckman
- 👤 Prentice Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:14
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/06; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52408; F16K39/00; F16K39/02; F16K39/022
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) | 1930-06-13 | 1930-12-13 | 1931-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-06-13 | 1934-12-13 | 1935-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-06-13 | 1938-12-13 | 1939-06-14 | $7700.00 | Window Closed / Lapsed |