US3376353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of glycols from polyester production
Assignee: Monsanto Co
•
Filing: 1967-03-17
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Granted: 1968-04-02
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Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 John E Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:19
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B; B01; B01D; B01D5/00; B01D5/0003; B01D5/0024
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |