US1770909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-supply regulator
Assignee: Individual
•
Filing: 1926-02-10
•
Granted: 1930-07-22
•
Expires: 1946-02-10
Abstract
No abstract record available.
Inventors
- 👤 Robert A Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:36
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; F16K15/00; F16K15/02; F16K15/025; F16K15/026; F16K15/06; F16K15/063; F16K2200/00; F16K2200/30; F16K2200/303; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7923; Y10T137/7929; 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) | 1933-07-21 | 1934-01-20 | 1934-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-21 | 1938-01-20 | 1938-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-21 | 1942-01-20 | 1942-07-22 | $7700.00 | Window Closed / Lapsed |