US2590147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve arrangement and installation
Assignee: Sloan Valve Co
•
Filing: 1946-06-03
•
Granted: 1952-03-25
•
Expires: 1966-06-03
Abstract
No abstract record available.
Inventors
- 👤 John I Bellamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:30
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/10; Y; Y10; Y10S; Y10S4/00; Y10S4/03
Claims Analysis
Total Claims: 0
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US2412452A
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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) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |