US2890496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making fiber mat
Assignee: Individual
•
Filing: 1956-10-08
•
Granted: 1959-06-16
•
Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Steele D Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1638981A
Cited
US1834309A
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US2155875A
Cited
US2113514A
Cited
US2281860A
Cited
US2571334A
Cited
US2635301A
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 |