Patent US3902926A successfully refreshed from Google Patents.
US2494968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkoxy borohydrides and their method of preparation
Assignee: Individual
•
Filing: 1945-07-17
•
Granted: 1950-01-17
•
Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 Hermann I Schlesinger
- 👤 Herbert C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS OF PREPARING AN ALKOXYBOROHYDRIDE WHICH COMPRISES REACTING A HYDRIDE OF A METAL OF THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS AND AN ALCOHOLIC ESTER OF BORIC ACID
Claim 2
Dependent Claim
31 words
A PROCESS OF PREPARING AN ALKOXYBOROHYDRIDE WHICH COMPRISES REACTING A HYDRIDE OF A METAL OF THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS AND AN ALCOHOLIC ESTER OF BORIC ACID
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |