Patent US3271413A successfully refreshed from Google Patents.
Patent US6227447B1 successfully refreshed from Google Patents.
US2745375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for covering core material with fibrous material
Assignee: Individual
•
Filing: 1952-08-18
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Granted: 1956-05-15
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Expires: 1972-08-18
Abstract
No abstract record available.
Inventors
- 👤 Edward R Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:22
CPC Classifications
B; B68; B68G; B68G3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
APPARATUS FOR PRODUCING CONTINUOUSLY A LOW DENSITY, HIGH BULK FILLER SUITABLE FOR SLEEPING BAGS COMPRISING MEANS FOR MOVING A CONTINUOUS FINE RESILIENT CORE MATERIAL IN ITS OWN LENGTH; MEANS FOR IMPOSING TENSION ON SAID CORE MATERIAL AS IT TRAVELS; MEANS OVER WHICH THE TENSIONED CORE MATERIAL TRAVELS FOR CHANGING THE MOLECULAR STRUCTURE OF THE CORE MATERIAL BY AN UNBALANCED STRETCHING SO THAT THE CORE MATERIAL, WHEN TENSION IS RELEASED, WILL AUTOMATICALLY ASSUME A GENERALLY HELICAL FORM, THE DIAMETER OF THE HELIX SO FORMED BEING MANY TIMES THE DIAMETER OF THE CROSS SECTION OF THE CORE MATERIAL; MEANS TO COAT THE TREATED CORE MATERIAL WITH A TACKY ADHESIVE; MEANS FOR APPLYING A BULKY SOFT FIBROUS PRODUCT TO SAID CORE
Claim 2
Dependent Claim
118 words
APPARATUS FOR PRODUCING CONTINUOUSLY A LOW DENSITY, HIGH BULK FILLER SUITABLE FOR SLEEPING BAGS COMPRISING MEANS FOR MOVING A CONTINUOUS FINE RESILIENT CORE MATERIAL IN ITS OWN LENGTH; MEANS FOR IMPOSING TENSION ON SAID CORE MATERIAL AS IT TRAVELS; MEANS OVER WHICH THE TENSIONED CORE MATERIAL TRAVELS FOR CHANGING THE MOLECULAR STRUCTURE OF THE CORE MATERIAL BY AN UNBALANCED STRETCHING SO THAT THE CORE MATERIAL, WHEN TENSION IS RELEASED, WILL AUTOMATICALLY ASSUME A GENERALLY HELICAL FORM, THE DIAMETER OF THE HELIX SO FORMED BEING MANY TIMES THE DIAMETER OF THE CROSS SECTION OF THE CORE MATERIAL; MEANS TO COAT THE TREATED CORE MATERIAL WITH A TACKY ADHESIVE; MEANS FOR APPLYING A BULKY SOFT FIBROUS PRODUCT TO SAID CORE
References Cited (Backward Citations)
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Cited
US1952502A
Cited
US2287879A
Cited
US2260054A
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |