Patent US2252821A successfully refreshed from Google Patents.
US2252821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicolored laminated resin product
Assignee: CATALIN Corp
•
Filing: 1938-08-17
•
Granted: 1941-08-19
•
Expires: 1958-08-17
Abstract
No abstract record available.
Inventors
- 👤 Wesley R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/02; B44F1/04; B29; B29C; B29C69/00; B29C69/001; B32; B32B; B32B27/00; B44C; B44C3/00; B44C3/02; B44C3/025; B44C3/12; B44F1/08; B29C2793/00; B29C2793/0063; B29C48/00; B29C48/001; B29C48/0022; B29C48/03; B29C48/07; B29K; B29K2995/00; B29K2995/0018; B29K2995/002; B29K2995/0021; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31946
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-08-18 | 1945-02-17 | 1945-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-18 | 1949-02-17 | 1949-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-18 | 1953-02-17 | 1953-08-19 | $7700.00 | Window Closed / Lapsed |