US2420522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making articles from plastic treated materials
Assignee: Individual
•
Filing: 1942-03-09
•
Granted: 1947-05-13
•
Expires: 1962-03-09
Abstract
No abstract record available.
Inventors
- 👤 Daly Le Grand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:41
CPC Classifications
F; F41; F41H; F41H1/00; F41H1/04; F41H1/08; A; A42; A42B; A42B3/00; A42B3/04; A42B3/06; A42C; A42C2/00; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/342; B29C70/40; B29C70/42; B29C70/44; B32; B32B; B32B27/00; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29L; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4814; B29L2031/4821; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |