Patent US2745109A successfully refreshed from Google Patents.
US2745109A
Expired / Lapsed
US
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Valve assembly for flush tanks
Assignee: Individual
•
Filing: 1954-05-07
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Granted: 1956-05-15
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Expires: 1974-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr James A Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:08
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/16; E03D1/30; E03D1/34; Y; Y10; Y10S; Y10S4/00; Y10S4/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US449728A
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US909789A
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US761758A
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US1251803A
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US1536078A
Cited
US1767021A
Cited
US1890281A
Cited
US1987229A
Cited
US2219367A
Cited
US2214439A
Cited
US2437435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |