US3776808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported ribbons
Assignee: Celanese Corp
•
Filing: 1971-09-30
•
Granted: 1973-12-04
•
Expires: 1991-09-30
Abstract
Abstract SUPPORTED BULKED RIBBONS HAVING IMPROVED COVER AND THE PROCESS FOR THEIR PREPARATION, THE RIBBONS COMPRISING A SHEET OF SUBSTANTIALLY PARALLEL CONTINUOUS FILAMENT COMPACTED YARNS PERIPHERALLY SECURED TO A SUBSTRATE.
Inventors
- 👤 R Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B29/00; B32B29/02; B32B5/00; B32B5/22; B32B5/24; B32B5/26; D; D04; D04H; D04H3/00; D04H3/02; D04H3/04; B32B2262/00; B32B2262/02; B32B2262/0223; B32B2262/0246; B32B2262/0253; B32B2262/0261; B32B2262/0276; B32B2262/06; B32B2262/062; B32B2451/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T428/31504; Y10T428/31725; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/159; Y10T442/20; Y10T442/2738
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |