Patent US2378642A successfully refreshed from Google Patents.
US2378642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making fiber-body articles
Assignee: BURKART Manufacturing Co F
•
Filing: 1941-09-02
•
Granted: 1945-06-19
•
Expires: 1961-09-02
Abstract
No abstract record available.
Inventors
- 👤 Karl J Kopplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C51/00; B29C51/002; B29C51/004; B29C51/08; B29C51/082; B29D; B29D22/00; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; B29K2311/00; B29K2311/10; B29L; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4814; B29L2031/4821; Y; Y10; Y10S; Y10S264/00; Y10S264/64
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) | 1948-06-18 | 1948-12-18 | 1949-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-18 | 1952-12-18 | 1953-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-18 | 1956-12-18 | 1957-06-19 | $7700.00 | Window Closed / Lapsed |