Patent US5717259A successfully refreshed from Google Patents.
Patent US2270223A successfully refreshed from Google Patents.
US2270223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felted product
Assignee: EIDP Inc
•
Filing: 1939-11-14
•
Granted: 1942-01-13
•
Expires: 1959-11-14
Abstract
No abstract record available.
Inventors
- 👤 Schlack Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4266; D04H1/04; D04H1/08; D04H1/4326; D04H1/4334; D04H1/58; D04H1/64; D04H1/645; D06; D06M; D06M13/00; D06M13/52; D06M13/522
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) | 1945-01-12 | 1945-07-14 | 1946-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-12 | 1949-07-14 | 1950-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-12 | 1953-07-14 | 1954-01-13 | $7700.00 | Window Closed / Lapsed |