US3388028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layered nonwoven fabrics
Assignee: Kendall Co
•
Filing: 1964-03-06
•
Granted: 1968-06-11
•
Expires: 1984-03-06
Abstract
No abstract record available.
Inventors
- 👤 Robert R Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/668; Y10T442/697
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |