Patent US3487141A successfully refreshed from Google Patents.
US3487141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for the manufacture of polyester and the like
Assignee: Goodyear Tire and Rubber Co
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Filing: 1967-07-14
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Granted: 1969-12-30
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Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Everett D George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:04
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B; B29; B29B; B29B9/00; B29B9/02; B29B9/04; B29C; B29C43/00; B29C43/22; B29C43/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880110A
Cited
US1975481A
Cited
US2221019A
Cited
US3032815A
Cited
US3118577A
Cited
US3110547A
Cited
US3141578A
Cited
GB1036783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |