US3384521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making non-woven fabrics
Assignee: Individual
•
Filing: 1964-09-22
•
Granted: 1968-05-21
•
Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Borup Gustav William Bilgrav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:02
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/03; B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C66/00; B29C66/70; B29C66/72; B29C66/729; B29C66/7294; B29C66/72941; B29C66/80; B29C66/83; B29C66/836; D04H3/005; D04H3/04; D04H3/07; D06; D06M; D06M23/00; D06M23/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
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 |