US2192339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating valve
Assignee: Individual
•
Filing: 1938-03-05
•
Granted: 1940-03-05
•
Expires: 1958-03-05
Abstract
No abstract record available.
Inventors
- 👤 Wylie G Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38
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) | 1943-03-05 | 1943-09-04 | 1944-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-05 | 1947-09-04 | 1948-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-05 | 1951-09-04 | 1952-03-05 | $7700.00 | Window Closed / Lapsed |