Patent US3455349A successfully refreshed from Google Patents.
US3455349A
Expired / Lapsed
US
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Fluid filters and apparatus for bleeding hydraulic systems
Assignee: Tecalemit Engineering Ltd
•
Filing: 1965-12-15
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Granted: 1969-07-15
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas Eric Greenwood
- 👤 Ronald Edward Farnfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:06
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; B60T17/222; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7498
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735601A
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US1262495A
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US1835429A
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US2186987A
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US2355822A
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US2731027A
Cited
US2761833A
Cited
US2777293A
Cited
GB868149A
Cited
US3246767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |