Patent US2444008A successfully refreshed from Google Patents.
US2444008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded tubing or bellows
Assignee: CHICAGO METAL HOSE Corp
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Filing: 1944-05-03
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Granted: 1948-06-22
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Expires: 1964-05-03
Abstract
No abstract record available.
Inventors
- 👤 Fentress David Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/1004; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/20; B21C37/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |