US3260735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reducing the sediment in organic polyisocyanates and product
Assignee: Bayer Corp
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Filing: 1962-11-02
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Granted: 1966-07-12
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Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:31
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; C07; C07C; C07C263/00; C07C263/18; C08G18/28; C08G18/30; C08G18/36; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4216; C08G18/4236; C08G18/4238; C08G18/48; C08G18/487; C08G18/4879; C08G18/77; C08G18/773; C09; C09D; C09D175/00; C09D175/04; C09J; C09J175/00; C09J175/04; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF REDUCING THE SEDIMENT IN AN ORGANIC PARE A MIXTURE OF AROMATIC POLYAMINES LINKED TOGETHER BY POLYISOCYANATE WHICH HAS BEEN PREPARED BY A PROCESS WHICH COMPRISES REACTING AN AROMATIC AMINE SELECTED FROM THE GROUP CONSISTING OF ANILINE, ORTHO, META AND PARATOLUIDINE, XYLENE AMINE, TOLYLENE DIAMINE, AND ORTHO, META AND PARA-XYLENE DIAMINE, WITH AN ALDEHYDE OR KETONE HAVING THE FORMULA
Claim 2
Independent Claim
61 words
A METHOD OF REDUCING THE SEDIMENT IN AN ORGANIC PARE A MIXTURE OF AROMATIC POLYAMINES LINKED TOGETHER BY POLYISOCYANATE WHICH HAS BEEN PREPARED BY A PROCESS WHICH COMPRISES REACTING AN AROMATIC AMINE SELECTED FROM THE GROUP CONSISTING OF ANILINE, ORTHO, META AND PARATOLUIDINE, XYLENE AMINE, TOLYLENE DIAMINE, AND ORTHO, META AND PARA-XYLENE DIAMINE, WITH AN ALDEHYDE OR KETONE HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |