Patent US3638991A successfully refreshed from Google Patents.
US3577290A
Expired / Lapsed
US
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Process of making a nonwoven fabric
Assignee: Procter and Gamble Co
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Filing: 1968-08-19
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Granted: 1971-05-04
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Expires: 1988-08-19
Abstract
Abstract A PROCESS OF MAKING A NONWOVEN FABRIC IN WHICH THE NEWLY COMPLETED NONWOVEN FABRIC IS RECYCLED AND USED AS A MOVING SUPPORT OF NEW FABRIC WEB BEING FORMED UNITL THE LATTER BECOMES SELF-SUPPORTING. THEN, THE SUPERPOSED WEBS ARE SEPARATED. THE PORTION THAT WAS RECYCLED IS REMOVED FROM THE PROCESS; THE NEWLY COMPLETED WEB PORTION ISW CONTINUOUSLY RECYCLED AS A MOVING SUPPORT IN THE AFORESAID MANNER.
Inventors
- 👤 Ralph J Baskerville Jr
- 👤 Joseph S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
D; D04; D04H; D04H1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |