US3081207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous mat and method of manufacture
Assignee: —
•
Filing: —
•
Granted: 1963-03-12
•
Expires: 1980-03-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:32
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218; D04H1/58; D04H1/587; D04H1/64; D04H1/645; D04H1/70; D04H1/72; D04H1/732; D04H13/00; Y; Y10; Y10T; Y10T442/00; Y10T442/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A FIBROUS GLASS MAT COMPRISING A FIRST LAYER OF SHORT STAPLE GLASS FIBERS OF UNEQUAL LENGTH, A SECOND LAYER OF RANDOM LENGTHS OF PARTIALLY DISPERSED BUNDLES OF GLASS FIBERS OF LARGER DIAMETER, SAID BUNDLES OF FIBERS HAVING LENGTHS GREATER THAN THE STAPLE FIBERS, SAID FIRST AND SECOND LAYERS BEING INTERFERED AND INTERBONDED AT THEIR CONTIGUOUS FACES AND ALL OF THE FIBERS BEING BONDED TOGETHER AT THEIR POINTS OF CONTACT TO FORM A STABILIZED MASS.
Claim 2
Dependent Claim
74 words
A FIBROUS GLASS MAT COMPRISING A FIRST LAYER OF SHORT STAPLE GLASS FIBERS OF UNEQUAL LENGTH, A SECOND LAYER OF RANDOM LENGTHS OF PARTIALLY DISPERSED BUNDLES OF GLASS FIBERS OF LARGER DIAMETER, SAID BUNDLES OF FIBERS HAVING LENGTHS GREATER THAN THE STAPLE FIBERS, SAID FIRST AND SECOND LAYERS BEING INTERFERED AND INTERBONDED AT THEIR CONTIGUOUS FACES AND ALL OF THE FIBERS BEING BONDED TOGETHER AT THEIR POINTS OF CONTACT TO FORM A STABILIZED MASS.
References Cited (Backward Citations)
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US2639759A
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US2731066A
Cited
US2604427A
Cited
US2751962A
Cited
US2719336A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |