Patent US2565701A successfully refreshed from Google Patents.
US2565701A
Expired / Lapsed
US
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Fluid sealing device
Assignee: Individual
•
Filing: 1945-11-17
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Granted: 1951-08-28
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Expires: 1965-11-17
Abstract
No abstract record available.
Inventors
- 👤 John H F Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/24; Y; Y10; Y10S; Y10S285/00; Y10S285/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US168980A
Cited
US1118315A
Cited
US1867045A
Cited
US2100113A
Cited
US2007501A
Cited
US2232293A
Cited
US2264741A
Cited
US2284424A
Cited
US2332763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |