US3406153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing polyethylene terephthalate
Assignee: EIDP Inc
•
Filing: 1966-08-09
•
Granted: 1968-10-15
•
Expires: 1986-08-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Eaton
- 👤 James R Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:32
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/78; C08G63/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA601310A
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CA601309A
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BE568816A
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US2877204A
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GB883754A
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US3058935A
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US3052653A
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FR1341506A
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GB1016511A
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US3139450A
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FR1377064A
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US3257337A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |