Patent US2749329A successfully refreshed from Google Patents.
US2749329A
Expired / Lapsed
US
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Compositions comprising polyester plasticizers
Assignee: EIDP Inc
•
Filing: 1951-03-30
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Granted: 1956-06-05
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 John L Ludlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:52
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2512723A
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US2555062A
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US2532498A
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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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |