US2802218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve
Assignee: FLUSHMASTER CORP
•
Filing: 1956-06-28
•
Granted: 1957-08-13
•
Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Claude J Wanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/32; E03D1/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |