US2449595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced plastic material
Assignee: Individual
•
Filing: 1944-08-19
•
Granted: 1948-09-21
•
Expires: 1964-08-19
Abstract
No abstract record available.
Inventors
- 👤 William D Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:52
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/228; B29C70/08; B29C70/088; B29C70/20; B29C70/226; D; D02; D02G; D02G3/00; D02G3/22; D02G3/38; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/30; Y10T442/3472; Y10T442/3528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1567574A
Cited
US1601911A
Cited
US1942546A
Cited
US2087303A
Cited
GB502409A
Cited
US2311356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |