US2420036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for separating short coarse fibers from long fine fibers
Assignee: Individual
•
Filing: 1945-03-15
•
Granted: 1947-05-06
•
Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 Robert A Fairbairn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:03
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US233847A
Cited
US460078A
Cited
US466685A
Cited
US661166A
Cited
US636164A
Cited
US661749A
Cited
US821819A
Cited
US837205A
Cited
US1023750A
Cited
US2100112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |