Patent US3285958A successfully refreshed from Google Patents.
US3285958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of triaminoguanidine compounds from dicyandiamide
Assignee: Individual
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Filing: 1964-12-01
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Granted: 1966-11-15
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Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Satriana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:07
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C07; C07C; C07C281/00; C07C281/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR PREPARING TEIAMINOGUANIDINE COMPOUNDS BY REACTING DICYANDIAMIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE NITRATE AND HYDRAZINE HYDRATE; HYDRAZINE HYDROCHHLORIDE AND HYDRAZINE HHYDRATE; MONOMETHYL HYDRAZINE NITRATE AND MONOMETHYL HYDRAZINE; UNSYMMETRICAL DIMETHYL HYDRAZINE NITRATE AND UNSYMMETRICAL DIMETHYL HYDRAZINE; AND PHENYL HYDRAZINE NITRATE AND PHENYL HYDRAZINE.
Claim 2
Dependent Claim
49 words
A PROCESS FOR PREPARING TEIAMINOGUANIDINE COMPOUNDS BY REACTING DICYANDIAMIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDRAZINE NITRATE AND HYDRAZINE HYDRATE; HYDRAZINE HYDROCHHLORIDE AND HYDRAZINE HHYDRATE; MONOMETHYL HYDRAZINE NITRATE AND MONOMETHYL HYDRAZINE; UNSYMMETRICAL DIMETHYL HYDRAZINE NITRATE AND UNSYMMETRICAL DIMETHYL HYDRAZINE; AND PHENYL HYDRAZINE NITRATE AND PHENYL HYDRAZINE.
References Cited (Backward Citations)
US2945061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |