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Patent US3304248A successfully refreshed from Google Patents.
US3304248A
Expired / Lapsed
US
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Process for the production of nitrogen fluorides
Assignee: Stauffer Chemical Co
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Filing: 1963-07-24
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Granted: 1967-02-14
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Expires: 1983-07-24
Abstract
No abstract record available.
Inventors
- 👤 Harold T Fullam
- 👤 Seklemian Haig Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:27
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/083; C01B21/0832; C01B21/0835
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS FOR PREPARING A COMPOUND OF THE GROUP CONSISTING OF DINITROGEN TETRAFLUORIDE AND NITROGEN TRIFLUORIDE WHICH COMPRISES CONTACTING ELEMENTAL FLUORINE GAS WITH A NITROGEN PLASMA AT A TEMPERATURE OF AT LEAST 1000*C. FOR A CONTACT PERIOD OF 0.01-10.0 SECONDS AND
Claim 2
Dependent Claim
41 words
A PROCESS FOR PREPARING A COMPOUND OF THE GROUP CONSISTING OF DINITROGEN TETRAFLUORIDE AND NITROGEN TRIFLUORIDE WHICH COMPRISES CONTACTING ELEMENTAL FLUORINE GAS WITH A NITROGEN PLASMA AT A TEMPERATURE OF AT LEAST 1000*C. FOR A CONTACT PERIOD OF 0.01-10.0 SECONDS AND
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |