Patent US2220213A successfully refreshed from Google Patents.
US2220213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing elastic thread
Assignee: Individual
•
Filing: 1939-08-01
•
Granted: 1940-11-05
•
Expires: 1959-08-01
Abstract
No abstract record available.
Inventors
- 👤 Clay Philip Ernest Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:37
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/322; D02G3/328
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) | 1943-11-05 | 1944-05-06 | 1944-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-05 | 1948-05-06 | 1948-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-05 | 1952-05-06 | 1952-11-05 | $7700.00 | Window Closed / Lapsed |