US2571108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decortication of fibrous material
Assignee: Sativa Corp
•
Filing: 1945-07-26
•
Granted: 1951-10-16
•
Expires: 1965-07-26
Abstract
No abstract record available.
Inventors
- 👤 Burkardt Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:43
CPC Classifications
D; D01; D01B; D01B1/00; D01B1/10; D01B1/14; D01B1/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US358827A
Cited
US458318A
Cited
US494175A
Cited
US1064029A
Cited
GB128732A
Cited
US1627919A
Cited
US1766864A
Cited
US2079661A
Cited
US1983454A
Cited
US2197683A
Cited
US2207900A
Cited
US2233753A
Cited
US2305904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |