US2698731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid valve
Assignee: Individual
•
Filing: 1949-06-29
•
Granted: 1955-01-04
•
Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 Gustave J Koehler
- 👤 Gordon T Koehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:37
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0657; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1670691A
Cited
US1770900A
Cited
US2297161A
Cited
US2520288A
Cited
US2471941A
Cited
US2404816A
Cited
US2605994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |