Patent US3531363A successfully refreshed from Google Patents.
US3531363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven fabric
Assignee: EIDP Inc
•
Filing: 1967-01-06
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Granted: 1970-09-29
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Expires: 1987-01-06
Abstract
No abstract record available.
Inventors
- 👤 Charles Shambelan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:05
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24099; Y10T428/24132; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/60; Y10T442/643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3479244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |