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US2663580A
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Insulated slip-joint device
Assignee: Houdry Process Corp
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Filing: 1949-11-30
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Granted: 1953-12-22
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Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Robert M Shirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:01
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/08; F16L59/00; F16L59/14; F16L59/16; F16L59/18; Y; Y10; Y10S; Y10S277/00; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2103981A
Cited
US2438312A
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US2457232A
Cited
US2407700A
Cited
US2444211A
Cited
US2517083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |