Patent US2610075A successfully refreshed from Google Patents.
US2610075A
Expired / Lapsed
US
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Rotary mechanical seal with telescoping parts
Assignee: Crane Packing Co
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Filing: 1950-01-13
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Granted: 1952-09-09
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Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Paul T Haake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1671903A
Cited
US1640940A
Cited
US1807187A
Cited
US2192395A
Cited
US2404690A
Cited
US2489545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |