Patent US5276875A successfully refreshed from Google Patents.
US3099677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metaborate and polyborate esters
Assignee: US Borax Inc
•
Filing: 1959-01-21
•
Granted: 1963-07-30
•
Expires: 1979-01-21
Abstract
No abstract record available.
Inventors
- 👤 Don L Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF PRODUCING TRIPHENOXYBOROXINE WHICH COMPRISES HEATING AT NORMAL ATMOSPHERIC PRESSURE EQUIMOLECULAR WEIGHTS OF B2O3 AND TRIPHENYL BORATE IN THE PRESENCE OF FROM ABOUT 0.25% TO ABOUT 5% OF A CATALYST, SAID CATALYST SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY AND TERTIARY ALCOHOLS HAVING FROM 1 TO 18 CARBON ATOMS, PHENOL, CRESOLS, GLYCEROL, GLYCOL, ERYTHRITOL, PENTAERYTHRITOL, ARABITOL, MANNITOL, SORBITOL, GLUCOSE, FRUCTOSE AND MANNOSE.
Claim 2
Independent Claim
65 words
THE METHOD OF PRODUCING TRIPHENOXYBOROXINE WHICH COMPRISES HEATING AT NORMAL ATMOSPHERIC PRESSURE EQUIMOLECULAR WEIGHTS OF B2O3 AND TRIPHENYL BORATE IN THE PRESENCE OF FROM ABOUT 0.25% TO ABOUT 5% OF A CATALYST, SAID CATALYST SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY AND TERTIARY ALCOHOLS HAVING FROM 1 TO 18 CARBON ATOMS, PHENOL, CRESOLS, GLYCEROL, GLYCOL, ERYTHRITOL, PENTAERYTHRITOL, ARABITOL, MANNITOL, SORBITOL, GLUCOSE, FRUCTOSE AND MANNOSE.
References Cited (Backward Citations)
US2891086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |