US2768671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making non-woven fabric
Assignee: ALEXANDER SMITH Inc
•
Filing: 1955-04-19
•
Granted: 1956-10-30
•
Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Schock Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:19
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/08; D04H11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2219829A
Cited
US2553017A
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US2631957A
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US2526649A
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US2675337A
Cited
US2583337A
Cited
US2688578A
Cited
US2713012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |