Patent US2578187A successfully refreshed from Google Patents.
Patent US3383851A successfully refreshed from Google Patents.
US3383851A
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US
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Method of producing roving
Assignee: Certainteed LLC
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Filing: 1966-06-29
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Granted: 1968-05-21
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Howard M Hickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:37
CPC Classifications
D; D01; D01H; D01H1/00; B; B65; B65H; B65H54/00; B65H54/02; D01D; D01D7/00; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF PRODUCING A ROVING MADE UP OF TEXTILE FIBER STRANDS, SAID STRANDS UNTWISTED WITH RESPECT TO ONE ANOTHER IN SAID ROVING, COMPRISING THE STEPS OF WINDING A PLURALITY OF TEXTILE FIBER STRANDS ON A NONROTATING MANDREL IN SUCH MANNER THAT EACH CIRCUMFERENTIAL LENGTH OF ROVING WOUND ON SAID MANDREL HAS ONE TWIST PER TURN OF THE STRANDS WITH RESPECT TO ONE ANOTHER AND THEN WITHDRAWING THE ROVING FROM THE WOUND PACKAGE IN A DIRECTION OPPOSITE TO THAT IN WHICH THE STRANDS WERE WOUND ON THE SAID PACKAGE.
Claim 2
Independent Claim
89 words
A METHOD OF PRODUCING A ROVING MADE UP OF TEXTILE FIBER STRANDS, SAID STRANDS UNTWISTED WITH RESPECT TO ONE ANOTHER IN SAID ROVING, COMPRISING THE STEPS OF WINDING A PLURALITY OF TEXTILE FIBER STRANDS ON A NONROTATING MANDREL IN SUCH MANNER THAT EACH CIRCUMFERENTIAL LENGTH OF ROVING WOUND ON SAID MANDREL HAS ONE TWIST PER TURN OF THE STRANDS WITH RESPECT TO ONE ANOTHER AND THEN WITHDRAWING THE ROVING FROM THE WOUND PACKAGE IN A DIRECTION OPPOSITE TO THAT IN WHICH THE STRANDS WERE WOUND ON THE SAID PACKAGE.
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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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |