Patent US2706818A successfully refreshed from Google Patents.
US2706818A
Expired / Lapsed
US
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Control device for flush tanks
Assignee: Individual
•
Filing: 1952-01-05
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Granted: 1955-04-26
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Expires: 1972-01-05
Abstract
No abstract record available.
Inventors
- 👤 Graziosi Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:12
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1501318A
Cited
US1515414A
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US1676234A
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US2001545A
Cited
US1878613A
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US1904898A
Cited
US2016840A
Cited
US2450609A
Cited
US2644951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |