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US2545952A
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US
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Unwoven flexible fabric
Assignee: FIBRE PRODUCTS LAB Inc
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Filing: 1946-10-18
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Granted: 1951-03-20
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Expires: 1966-10-18
Abstract
No abstract record available.
Inventors
- 👤 Esther R Goldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:11
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/66; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AS AN ARTICLE OF MANUFACTURE, A FLEXIBLE FABRIC OF UNSPUN LONG FIBERS DISPOSED IN THE FORM OF A SHEET, SAID FIBERS BEING SPOT BONDED TO IMPART TO SAID SHEET TENSILE STRENGTH IN ALL DIRECTIONS BY A MULTIPLICITY OF ESSENTIALLY INDEPENDENT ADJACENT SPACED SPOTS OF BINDER IMPREGNATING AND COBONDING THE FIBERS OF SAID SHEET, SAID SPOTS OCCUPYING A MAJOR PROPORTION OF THE LATERIAL EXTENT OF SAID SHEET, BEING INDIVIDUALLY OF THE ORDER OF 0.004 TO 0.06 SQUARE INCH IN AREA AND BEING SPACED APART BY A DISTANCE OF THE ORDER OF 0.01 TO 0.06 INCH, THE FIBERS OF SAID SHEET IN THE SPACES BETWEEN SAID SPOTS BEING CAPABLE OF FLEXURE AND AFFORDING OVER-ALL FLEXIBILITY OF SAID SHEET.
Claim 2
Dependent Claim
116 words
AS AN ARTICLE OF MANUFACTURE, A FLEXIBLE FABRIC OF UNSPUN LONG FIBERS DISPOSED IN THE FORM OF A SHEET, SAID FIBERS BEING SPOT BONDED TO IMPART TO SAID SHEET TENSILE STRENGTH IN ALL DIRECTIONS BY A MULTIPLICITY OF ESSENTIALLY INDEPENDENT ADJACENT SPACED SPOTS OF BINDER IMPREGNATING AND COBONDING THE FIBERS OF SAID SHEET, SAID SPOTS OCCUPYING A MAJOR PROPORTION OF THE LATERIAL EXTENT OF SAID SHEET, BEING INDIVIDUALLY OF THE ORDER OF 0.004 TO 0.06 SQUARE INCH IN AREA AND BEING SPACED APART BY A DISTANCE OF THE ORDER OF 0.01 TO 0.06 INCH, THE FIBERS OF SAID SHEET IN THE SPACES BETWEEN SAID SPOTS BEING CAPABLE OF FLEXURE AND AFFORDING OVER-ALL FLEXIBILITY OF SAID SHEET.
References Cited (Backward Citations)
US1847269A
Cited
US1831403A
Cited
US1924598A
Cited
US1974209A
Cited
US2039312A
Cited
US2154943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |