US3218345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly (isocyanatoethyl) amines and process therefor
Assignee: Coastal Interchemical Co
•
Filing: 1962-07-17
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Granted: 1965-11-16
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Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 Norman B Rainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:52
CPC Classifications
C; C07; C07C; C07C265/00; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/785; D; D06; D06M; D06M13/00; D06M13/322; D06M13/395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
POLY (ISOCYANATOETHYL) AMINE COMPOUNDS REPRESENTED IN THE FORMULA:
Claim 2
Dependent Claim
8 words
POLY (ISOCYANATOETHYL) AMINE COMPOUNDS REPRESENTED IN THE FORMULA:
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |