US2670760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid flow cutoff and timer
Assignee: Individual
•
Filing: 1950-03-08
•
Granted: 1954-03-02
•
Expires: 1970-03-08
Abstract
No abstract record available.
Inventors
- 👤 Henry A Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US111518A
Cited
US266484A
Cited
US1005703A
Cited
US1029981A
Cited
US1172421A
Cited
US1339383A
Cited
US2423920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |