US3214203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed flange joints for pipe lines
Assignee: CONSTRUCTION D'UNE USINE DE SEPARATION ISOTOPIQUE Ste
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Filing: 1962-03-19
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Granted: 1965-10-26
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Mongodin Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:11
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16L23/028; F16L23/0286; F16L23/032; F16L23/036; F16L37/00; F16L37/08; F16L37/12; F16L37/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US95621A
Cited
US1992503A
Cited
US1535294A
Cited
FR668578A
Cited
US2009650A
Cited
US2944842A
Cited
US2900199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |