Patent US2961443A successfully refreshed from Google Patents.
US2961443A
Expired / Lapsed
US
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Organic compounds of boron
Assignee: Ethyl Corp
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Filing: 1957-04-10
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Granted: 1960-11-22
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Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Ashby
- 👤 Walter E Foster
- 👤 Jesse R Mangham
- 👤 Tillmon H Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:59
CPC Classifications
C; C10; C10M; C10M139/00; C07; C07F; C07F5/00; C10M2227/00; C10M2227/08; C10N; C10N2010/00; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE AMINE COMPLEX OF AN ALKYNYL BORON COMPOUND, WHEREIN SAID ALKYNYL GROUP IS A LOWER ALKYNYL GROUP AND SAID AMINE IS A NITROGENOUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA, PRIMARY HYDROCARBON MONOAMINES, SECONDARY HYDROCARBON MONO-AMINES, AND NONHETEROCYCLIC HYDROCARBON TERTIARY MONO-AMINES WHEREIN THE HYDROCRBON SUBSTITUENTS OF SAID PRIMARY, SECONDARY AND TERITARY MONO-AMINES CONTAIN NO MORE THAN 10 CARBON ATOMS, AND HETEROCYCLIC AMINES SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, PIPERIDINE ACRIDINE AND ISOQUINOLINE.
Claim 2
Dependent Claim
74 words
THE AMINE COMPLEX OF AN ALKYNYL BORON COMPOUND, WHEREIN SAID ALKYNYL GROUP IS A LOWER ALKYNYL GROUP AND SAID AMINE IS A NITROGENOUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA, PRIMARY HYDROCARBON MONOAMINES, SECONDARY HYDROCARBON MONO-AMINES, AND NONHETEROCYCLIC HYDROCARBON TERTIARY MONO-AMINES WHEREIN THE HYDROCRBON SUBSTITUENTS OF SAID PRIMARY, SECONDARY AND TERITARY MONO-AMINES CONTAIN NO MORE THAN 10 CARBON ATOMS, AND HETEROCYCLIC AMINES SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, PIPERIDINE ACRIDINE AND ISOQUINOLINE.
References Cited (Backward Citations)
US2234581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |