US3356707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron esters and process of preparing same
Assignee: Ethyl Corp
•
Filing: 1958-05-05
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Granted: 1967-12-05
•
Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 James B Hinkamp
- 👤 John D Bartleson
- 👤 Glenn E Irish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:23
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10L; C10L3/00; C10L3/003; C10L3/006; C10M; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A BORON ESTER DERIVED FROM BORON ACIDS SELECTED FROM THE GROUP CONSISTING OF PYROBORIC, BORONIC, AND BORINIC ACIDS WHEREIN AN ESTERIFYING GROUP IS A 2,6-DIALKYL PHENOL WHEREIN THE ALKYL GRUPS ARE BRANCHED ON THE ACARBON ATOM AND CONTAIN AT LEAST 4 CARBON ATOMS.
Claim 2
Dependent Claim
43 words
A BORON ESTER DERIVED FROM BORON ACIDS SELECTED FROM THE GROUP CONSISTING OF PYROBORIC, BORONIC, AND BORINIC ACIDS WHEREIN AN ESTERIFYING GROUP IS A 2,6-DIALKYL PHENOL WHEREIN THE ALKYL GRUPS ARE BRANCHED ON THE ACARBON ATOM AND CONTAIN AT LEAST 4 CARBON ATOMS.
References Cited (Backward Citations)
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US2721121A
Cited
US2721181A
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US2795548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |