US2719802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous, non-woven textile-like sheet material
Assignee: Pellon Corp
•
Filing: 1951-12-22
•
Granted: 1955-10-04
•
Expires: 1971-12-22
Abstract
No abstract record available.
Inventors
- 👤 Nottebohm Carl Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:59
CPC Classifications
B; B32; B32B; B32B27/00; C; C09; C09J; C09J5/00; C09J5/08; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/68; Y; Y10; Y10T; Y10T428/00; Y10T428/249921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A FABRIC-LIKE, POROUS, AIR-PERMEABLE, FLEXIBLE SHEET MATERIAL CONSISTING OF AN OPEN SKELETON OF INTERMINGLED, FINE, CARDABLE POLYPOSED FIBERS, SAID SKELETON HAVING SUBSTANTIALLY UNIFORMLY DISTRIBUTED THERETHROUGH AND ADHERING TO THE FIBERS FILMY PARTICLES OF A FLEXIBLE, SOLID BINDER MATERIAL, CEMENTING ADJACENT FIBERS TOGETHER AND BEING DISPOSED PRIMARILY IN THE REGION OF THE CROSSING POINTS OF THE FIBERS WITH PRESERVATION OF NUMEROUS, RELATIVELY LARGE INTERSTICES THE MAJORITY OF WHICH ARE IN THE FORM OF FLAT PORES EXTENDING SUBSTANTIALLY IN PLANES PARALLE TO THE GENERAL PLANE OF THE SHEET, SAID FIBERS CONSTITUTING ABOUT 30% TO ABOUT 75% OF THE TOTAL WEIGHT OF SAID SHEET, THE BALANCE OF SAID SHEET CONSISTING ESSENTIALLY OF SAID BINDER
Claim 2
Dependent Claim
111 words
A FABRIC-LIKE, POROUS, AIR-PERMEABLE, FLEXIBLE SHEET MATERIAL CONSISTING OF AN OPEN SKELETON OF INTERMINGLED, FINE, CARDABLE POLYPOSED FIBERS, SAID SKELETON HAVING SUBSTANTIALLY UNIFORMLY DISTRIBUTED THERETHROUGH AND ADHERING TO THE FIBERS FILMY PARTICLES OF A FLEXIBLE, SOLID BINDER MATERIAL, CEMENTING ADJACENT FIBERS TOGETHER AND BEING DISPOSED PRIMARILY IN THE REGION OF THE CROSSING POINTS OF THE FIBERS WITH PRESERVATION OF NUMEROUS, RELATIVELY LARGE INTERSTICES THE MAJORITY OF WHICH ARE IN THE FORM OF FLAT PORES EXTENDING SUBSTANTIALLY IN PLANES PARALLE TO THE GENERAL PLANE OF THE SHEET, SAID FIBERS CONSTITUTING ABOUT 30% TO ABOUT 75% OF THE TOTAL WEIGHT OF SAID SHEET, THE BALANCE OF SAID SHEET CONSISTING ESSENTIALLY OF SAID BINDER
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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) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |