US2678058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush tank valve for commodes
Assignee: MELVIN EARSLEY
•
Filing: 1952-03-10
•
Granted: 1954-05-11
•
Expires: 1972-03-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/22; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/7287; Y10T137/7358; Y10T137/7407; Y10T137/741; Y10T137/7423; Y10T137/7426; Y10T137/7433; Y10T137/7436
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US393621A
Cited
US1143000A
Cited
US1241982A
Cited
US1477916A
Cited
US1589786A
Cited
US2444958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |