US3103531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of trialkanolamine
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
•
Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:53
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A METHOD OF PREPARING A LOWER TRIALKANOLAMINE BORATE THAT COMPRISES THE STEPS OF REACTING A LOWER TRIALKANOLAMINE WITH A LOWER TRIALKYL BORATE AND RECOVERING THE TRIALKANOLAMINE BORATE FORMED THEREBY.
Claim 2
Independent Claim
29 words
A METHOD OF PREPARING A LOWER TRIALKANOLAMINE BORATE THAT COMPRISES THE STEPS OF REACTING A LOWER TRIALKANOLAMINE WITH A LOWER TRIALKYL BORATE AND RECOVERING THE TRIALKANOLAMINE BORATE FORMED THEREBY.
References Cited (Backward Citations)
US2441063A
Cited
US2587753A
Cited
US2839564A
Cited
US2785192A
Cited
US2942021A
Cited
US2894020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |