US3483169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-polyethers and process of preparing the same
Assignee: Individual
•
Filing: 1967-08-21
•
Granted: 1969-12-09
•
Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Leslie Catron Case
- 👤 Laura Kaiser Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4244; C08G18/4247; C08G18/4252; C08G63/02; C08G63/12; C08G63/40; C08G63/42; C08G63/52; C08G63/56; C08G63/58; C08G63/66; C08G63/668; C08G63/688; C08G63/6884; C08G63/692; C08G63/6924; C08G63/698; C08G63/6984; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2615
Claims Analysis
Total Claims: 0
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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) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |