Patent US2885399A successfully refreshed from Google Patents.
US2885399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrazinium hexafluorophosphate salts
Assignee: Ohio State University Research Foundation
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Filing: 1957-03-04
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Granted: 1959-05-05
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Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 George M Omietanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
NEW CHEMICAL COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
NEW CHEMICAL COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 3
Dependent Claim
7 words
AS A NEW CHEMICAL COMPOUND 4-AMINO-4-METHYLMORPHOLINIUM HEXAFLUOROPHOSPHATE.
Claim 4
Dependent Claim
7 words
AS A NEW CHEMICAL COMPOUND 4-AMINO-4-METHYLMORPHOLINIUM HEXAFLUOROPHOSPHATE.
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |