Patent US5398949A successfully refreshed from Google Patents.
US2583468A
Expired / Lapsed
US
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Valve control means for flush tanks for toilets
Assignee: Individual
•
Filing: 1950-01-13
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Granted: 1952-01-22
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Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Castellano James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:33
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718744A
Cited
US1960864A
Cited
US1992391A
Cited
US2001390A
Cited
US2106916A
Cited
US2440389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |