US2918312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated couplings for high pressure fluid lines
Assignee: Olin Corp
•
Filing: 1953-05-26
•
Granted: 1959-12-22
•
Expires: 1973-05-26
Abstract
No abstract record available.
Inventors
- 👤 Edward C Filstrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:01
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/02; F16L25/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1858251A
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US2676037A
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US2627580A
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US2626166A
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US2752579A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |