US2414028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric materials
Assignee: EIDP Inc
•
Filing: 1942-11-03
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Granted: 1947-01-07
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Expires: 1962-11-03
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Dietrich
- 👤 James E Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:01
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/146; C10M; C10M1/00; C10M1/08; C10L1/18; C10L1/192; C10L1/198; C10L1/24; C10L1/2462; C10L1/2475; C10M2209/00; C10M2209/10; C10M2221/00; C10M2221/02; C10M2221/04; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-01-06 | 1950-07-08 | 1951-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-01-06 | 1954-07-08 | 1955-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-01-06 | 1958-07-08 | 1959-01-07 | $7700.00 | Window Closed / Lapsed |