US2760845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized fuming nitric acid
Assignee: North American Aviation Corp
•
Filing: 1953-05-04
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Granted: 1956-08-28
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Irving A Kanarek
- 👤 Paul E Friebertshauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/20; C01B21/38; C01B21/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AN OXIDIZER MIXTURE CONSISTING ESSENTIALLY OF FUMING NITRIC ACID AND FROM ABOUT 0.83% TO LESS THAN 5% BY WEIGHT OF HYDROGEN FLUORIDE.
Claim 2
Dependent Claim
22 words
AN OXIDIZER MIXTURE CONSISTING ESSENTIALLY OF FUMING NITRIC ACID AND FROM ABOUT 0.83% TO LESS THAN 5% BY WEIGHT OF HYDROGEN FLUORIDE.
References Cited (Backward Citations)
US2048362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |