US3434188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing nonwoven fabrics
Assignee: EIDP Inc
•
Filing: 1967-01-06
•
Granted: 1969-03-25
•
Expires: 1987-01-06
Abstract
No abstract record available.
Inventors
- 👤 Ronald John Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3040412A
Cited
US3129466A
Cited
US3214819A
Cited
US3333315A
Cited
US3257259A
Cited
US3377231A
Cited
US3353225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |