Patent US4341632A successfully refreshed from Google Patents.
Patent US2978502A successfully refreshed from Google Patents.
US2978502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organo-boron compounds
Assignee: US Borax Inc
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Filing: 1959-03-06
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Granted: 1961-04-04
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Expires: 1979-03-06
Abstract
No abstract record available.
Inventors
- 👤 English William David
- 👤 Allen L Mccloskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:33
CPC Classifications
C; C07; C07F; C07F5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD OF PRODUCING BORAZOLES WHICH COMPRISES HEATING AT REFLUX A TRIS(AMINO)BORANE SELECTED FROM THE GROUP CONSISTING OF (RNH)3B AND (R2N)3B WHEREIN R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS, PHENYL, THIOPHENYL AND PYRIDYL, WITH A MATERIAL SELECTED FROM THE GROUP OF AMINE SALTS OF STRONG PROTONIC ACIDS CONSISTING OF RNH2 : HA, R2NH : HA AND R3N : HA WHEREIN R IS A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS, PHENYL, THIOPHENYL AND PYRIDYL, HA IS A STRONG PROTONIC ACID SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC, HYDROBROMIC, SULFURIC AND TRIFLUOROACETIC ACIDS AND WHEREIN AT LEAST ONE OF SAID REACTION INGREDIENTS IS DERIVED FROM A PRIMARY AMINE.
Claim 2
Independent Claim
124 words
THE METHOD OF PRODUCING BORAZOLES WHICH COMPRISES HEATING AT REFLUX A TRIS(AMINO)BORANE SELECTED FROM THE GROUP CONSISTING OF (RNH)3B AND (R2N)3B WHEREIN R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS, PHENYL, THIOPHENYL AND PYRIDYL, WITH A MATERIAL SELECTED FROM THE GROUP OF AMINE SALTS OF STRONG PROTONIC ACIDS CONSISTING OF RNH2 : HA, R2NH : HA AND R3N : HA WHEREIN R IS A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1-6 CARBON ATOMS, PHENYL, THIOPHENYL AND PYRIDYL, HA IS A STRONG PROTONIC ACID SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC, HYDROBROMIC, SULFURIC AND TRIFLUOROACETIC ACIDS AND WHEREIN AT LEAST ONE OF SAID REACTION INGREDIENTS IS DERIVED FROM A PRIMARY AMINE.
References Cited (Backward Citations)
US2821463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |