US2689959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pop-up waste valve
Assignee: ELJER Co
•
Filing: 1951-02-27
•
Granted: 1954-09-28
•
Expires: 1971-02-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank R Holycross
- 👤 David E Gulick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:27
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22; E03C1/23; E03C1/2302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US439818A
Cited
US445957A
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US1483850A
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US1462853A
Cited
US1736849A
Cited
FR723824A
Cited
US2049249A
Cited
FR42967E
Cited
US2430184A
Cited
US2428565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |