US3142650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes from tris-polypropylene glycol phosphites
Assignee: GE Chemicals Inc
•
Filing: 1961-09-05
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Granted: 1964-07-28
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Friedman Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:00
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/48; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C07F9/093; C07F9/141; C07F9/1411; C07F9/16; C07F9/165; C07F9/1651; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4015; C07F9/48; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657163; C07F9/657181; C08; C08F; C08F30/00; C08F30/02; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C08G18/40; C08G18/48; C08G18/50; C08G18/5075; C08G18/5078; C08G18/5081; C08G18/5087; C08G18/5093; C08G18/67; C08G18/675; C08G18/677; C08G18/6785; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4071; C08G63/00; C08G63/68; C08G63/692; C08G63/6924; C08L; C08L63/00; C08L75/00; C08L75/04; C10M105/00; C10M105/74; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/047; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A POLYURETHANE COMPRISING THE REACTION PRODUCT OF A POLYHYDROXY COMPOUND CONTAINING ALCOHOLIC HYDROXYL GROUPS CONPRISING A TRIS-POLYPROPYLENE GLYCOL PHOSPHITE AND AN ORGANIC POLYISOCYANATE, THE MAJORITY OF THE FREE HYDROXYL GROUPS ON SAID PHOSPHITE BEING SECONDARY HYDROXYL GROUPS.
Claim 2
Dependent Claim
37 words
A POLYURETHANE COMPRISING THE REACTION PRODUCT OF A POLYHYDROXY COMPOUND CONTAINING ALCOHOLIC HYDROXYL GROUPS CONPRISING A TRIS-POLYPROPYLENE GLYCOL PHOSPHITE AND AN ORGANIC POLYISOCYANATE, THE MAJORITY OF THE FREE HYDROXYL GROUPS ON SAID PHOSPHITE BEING SECONDARY HYDROXYL GROUPS.
References Cited (Backward Citations)
DE1106489B
Cited
US3009939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |