US3411215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for drying particulate polymer
Assignee: EIDP Inc
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Filing: 1966-12-08
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Granted: 1968-11-19
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Reuben T Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:26
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/46; F; F26; F26B; F26B17/00; F26B17/12; F26B17/16; F26B21/00; F26B21/40
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |