US2959509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needled felt
Assignee: American Felt Co
•
Filing: 1955-08-15
•
Granted: 1960-11-08
•
Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jule F Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:34
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
THE PROCESS OF MAKING NEEDLED FELT WHICH IS CHARACTERIZED BY THE STEP OF MINGLNG A FUSIBLE SYNTHETIC RESIN IN POWEDERED FORM WITH THE FIBERS OF A FIBROUS BAT SUPPORTED UPON A BSAE FABRIC CONTAINING THERMOPLASTIC FIBERS, AND THEN NEEDLE-PUNCHING THE SUPPORTED BAT AND AT THE SAME TIME RENDERING ADHESIVE BOTH THE RESIN PARTICLES AND THE THERMOPLASTIC FIBERS BY THE FRICTIONAL HEAT OF THE NEEDLES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |