Patent US2464744A successfully refreshed from Google Patents.
US2464744A
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US
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Pressure seal joint
Assignee: Crane Co
•
Filing: 1946-03-21
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Granted: 1949-03-15
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Expires: 1966-03-21
Abstract
No abstract record available.
Inventors
- 👤 Fennema Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16L23/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US57643A
Cited
US1177638A
Cited
US1423754A
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US1474435A
Cited
US1866619A
Cited
US2314867A
Cited
US2303031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |