Patent US2777787A successfully refreshed from Google Patents.
US2777787A
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US
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Felt sheeting
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1952-11-15
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Granted: 1957-01-15
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Expires: 1972-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence D Bragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:08
CPC Classifications
B; B32; B32B; B32B27/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/593; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/27; Y10T442/00; Y10T442/50; Y10T442/51; Y10T442/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
FELT SHEETING EXHIBITING A DRY WEIGHT IN THE NEIGHBORHOOD OF 3 TO 6 OUNCES PER SQUARE YARD AND COMPOSED PRIMARILY OF NYLON AND WOOL FIBERS, SAID NYLON FIBERS CONSTITUTING ABOUT 30 TO ABOUT 35 PERCENT BY WEIGHT OF THE FIBER CONTENT OF THE SHEETING, SAID SHEETING COMPRISING AT LEAST EIGHT LAYERS EACH CONTAINING NYLONG AND WOOL FIBERS PRIMARILY ORIENTED IN ONE DIRECTION IN THE PLANE OF THE LAYER, SAID LAYERS BEING SUPERIMPOSED ONE UPON ANOTHER WITH THE FIBER ORIENTATIONS OF ADJACENT LAYERS IN ANGULAR RELATIONSHIP OF NOT MORE THAN ABOUT 60*, THE FIBERS OF THE TOP AND BOTTOM LAYERS BEING ORIENTED IN THE SAME DIRECTION, SAID NYLON FIBERS BEING BONDED TOGETHER AT THEIR INTERSECTIONS BY BUTADIENE-ACRYLONITRILE COPOLYMER, SAID LAYERS BEING COMPACTED TO FORM A WEB EXHIBITING SUBSTANTIALLY UNIFORM STRETCH AND STRENGTH IN ALL DIRECTIONS.
Claim 2
Dependent Claim
134 words
FELT SHEETING EXHIBITING A DRY WEIGHT IN THE NEIGHBORHOOD OF 3 TO 6 OUNCES PER SQUARE YARD AND COMPOSED PRIMARILY OF NYLON AND WOOL FIBERS, SAID NYLON FIBERS CONSTITUTING ABOUT 30 TO ABOUT 35 PERCENT BY WEIGHT OF THE FIBER CONTENT OF THE SHEETING, SAID SHEETING COMPRISING AT LEAST EIGHT LAYERS EACH CONTAINING NYLONG AND WOOL FIBERS PRIMARILY ORIENTED IN ONE DIRECTION IN THE PLANE OF THE LAYER, SAID LAYERS BEING SUPERIMPOSED ONE UPON ANOTHER WITH THE FIBER ORIENTATIONS OF ADJACENT LAYERS IN ANGULAR RELATIONSHIP OF NOT MORE THAN ABOUT 60*, THE FIBERS OF THE TOP AND BOTTOM LAYERS BEING ORIENTED IN THE SAME DIRECTION, SAID NYLON FIBERS BEING BONDED TOGETHER AT THEIR INTERSECTIONS BY BUTADIENE-ACRYLONITRILE COPOLYMER, SAID LAYERS BEING COMPACTED TO FORM A WEB EXHIBITING SUBSTANTIALLY UNIFORM STRETCH AND STRENGTH IN ALL DIRECTIONS.
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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) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |