US2461982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Watts Regulator Co
•
Filing: 1945-06-26
•
Granted: 1949-02-15
•
Expires: 1965-06-26
Abstract
No abstract record available.
Inventors
- 👤 Burchard E Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:51
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/42; F22B37/44; F22B37/446; G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/125; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |