US2809171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoisopropylaminoborane polymers
Assignee: OLIN CHEMICAL CO Inc
•
Filing: 1956-03-01
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Granted: 1957-10-08
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Expires: 1976-03-01
Abstract
No abstract record available.
Inventors
- 👤 Hough William Vernon
- 👤 George W Schaeffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:24
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AS NEW COMPOSITIONS OF MATTER, NORMALLY SOLID POLYMERS OF MONOISOPROPYLAMINOBORANE HAVING THE EMPIRICAL FORMULA C3H7NBH AND OBTAINED BY HEATING MONOISOPROPYLAMINOBORANE TO A TEMPERATURE OF ABOUT 250*-350* C., WHICH POLYMERS ARE CHARACTERIZED BY STABILITY IN AIR AND INSOLUBILITY IN WATER AND DILUTE HYDROCHLORIC ACID.
Claim 2
Dependent Claim
43 words
AS NEW COMPOSITIONS OF MATTER, NORMALLY SOLID POLYMERS OF MONOISOPROPYLAMINOBORANE HAVING THE EMPIRICAL FORMULA C3H7NBH AND OBTAINED BY HEATING MONOISOPROPYLAMINOBORANE TO A TEMPERATURE OF ABOUT 250*-350* C., WHICH POLYMERS ARE CHARACTERIZED BY STABILITY IN AIR AND INSOLUBILITY IN WATER AND DILUTE HYDROCHLORIC 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) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |