US3756893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven structure and method and apparatus for producing it
Assignee: Owens Corning
•
Filing: 1971-02-08
•
Granted: 1973-09-04
•
Expires: 1991-02-08
Abstract
Abstract A nonwoven structure and apparatus and method for making it where the structure includes successive strips of linear material extending in overlap- ping relation across it and where the end of each of the strips at one side of the structure is laterally offsetting the same direction with respect to the end of each of the strips at the opposite side.
Inventors
- 👤 R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/02; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/202; B29C70/28; B29C70/40; B29C70/50; B29C70/502; D04H3/00; D04H3/002; D04H3/004; Y; Y10; Y10S; Y10S156/00; Y10S156/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |