US1668062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut-off valve
Assignee: Individual
•
Filing: 1925-11-14
•
Granted: 1928-05-01
•
Expires: 1945-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Foerch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:28
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/085; F16K11/0853; F16K11/06; F16K11/072; F16K11/076; F16L; F16L53/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7781; Y10T137/7793; Y10T137/7805; Y10T137/8593; Y10T137/87917
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |