US2890497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming random fiber webs
Assignee: Curlator Corp
•
Filing: 1954-03-10
•
Granted: 1959-06-16
•
Expires: 1974-03-10
Abstract
No abstract record available.
Inventors
- 👤 Howard H Langdon
- 👤 Francis M Buresh
- 👤 Richard R Castor
- 👤 Robert E Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:14
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US451136A
Cited
US475246A
Cited
US1092857A
Cited
US1642135A
Cited
US1948395A
Cited
US1697647A
Cited
US2071438A
Cited
US2452427A
Cited
US2451915A
Cited
US2719337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |