US3179629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine and phosphorus containing polyurethanes
Assignee: GE Chemicals Inc
•
Filing: 1963-10-14
•
Granted: 1965-04-20
•
Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Friedman Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5075; C08G18/5078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A POLYURETHANE COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE WITH A MEMBER OF THE GROUP CONSISTING OF PHOSPHONATES HAVING THE FORMUALE
Claim 2
Dependent Claim
22 words
A POLYURETHANE COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE WITH A MEMBER OF THE GROUP CONSISTING OF PHOSPHONATES HAVING THE FORMUALE
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |