Patent US3305429A successfully refreshed from Google Patents.
US3305429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven fabric with foam binder
Assignee: Individual
•
Filing: 1963-01-25
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Granted: 1967-02-21
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Expires: 1983-01-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Stadden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:05
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T442/00; Y10T442/60; Y10T442/608
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A NONWOVEN FIBROUS ARTICLE COMPRISING A MIXTURE OF RANDOMLY DISPOSED INTERMINGLED FIBERS, SAID MIXTURE CONTAINING 50% TO 90% BY WEIGHT OF NONFOAMABLE FIBERS AND 50% TO 10% BY WEIGHT OF PARTIALLY FOAMED THERMOPLASTIC FIBERS, EACH OF SAID FOAMED THERMOPLASTIC FIBERS HAVING A FOAMED SURFACE AND AN UNMODIFIED CENTRAL CORE, SAID FOAM-SURFACED FIBERS BEING DISPERSED THROUGHOUT SAID FIBROUS ARTICLE AND SERVING AS A FEINFORCED FOAM BINDER THEREFOR.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |