Patent US3134638A successfully refreshed from Google Patents.
US3134638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing chlorodifluoramine
Assignee: North American Aviation Corp
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Filing: 1961-08-30
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Granted: 1964-05-26
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Expires: 1981-08-30
Abstract
No abstract record available.
Inventors
- 👤 Emil A Lawton
- 👤 John Q Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:53
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
THE PROCESS FOR THE PREPARATION OF CHLORODIFLUORAMINE WHICH COMPRISES REACTING DIFLUORAMINE WITH CARBONYL CHLORIDE.
Claim 2
Dependent Claim
14 words
THE PROCESS FOR THE PREPARATION OF CHLORODIFLUORAMINE WHICH COMPRISES REACTING DIFLUORAMINE WITH CARBONYL CHLORIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |