US2862729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible bellows seal for flanged pipe joint
Assignee: Crane Co
•
Filing: 1955-02-10
•
Granted: 1958-12-02
•
Expires: 1975-02-10
Abstract
No abstract record available.
Inventors
- 👤 Kurt B Bredtschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:00
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; F16L13/04; F16L13/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US867752A
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US1493269A
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US1825062A
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GB386014A
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US1926107A
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US2157885A
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US2183757A
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US2445484A
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US2582249A
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US2739828A
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US2684255A
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US2756077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |