US2168331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast resin with integral sheen
Assignee: EIDP Inc
•
Filing: 1936-10-17
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Granted: 1939-08-08
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Expires: 1956-10-17
Abstract
No abstract record available.
Inventors
- 👤 Charles M Fields
- 👤 George A Wilkens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:33
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/62; B29C41/00; B29C41/003; B29C41/02; B29C41/04; B29C41/042; B29C70/585; B44; B44F; B44F1/00; B44F1/08; B44F1/14; B29K; B29K2033/00; B29K2033/04; B29K2033/12; B29K2105/00; B29K2105/0002; B29K2105/0094; B29L; B29L2023/00; B29L2023/22; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913
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) | 1942-08-07 | 1943-02-06 | 1943-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-08-07 | 1947-02-06 | 1947-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-08-07 | 1951-02-06 | 1951-08-08 | $7700.00 | Window Closed / Lapsed |