Patent US3749277A successfully refreshed from Google Patents.
Patent US3453844A successfully refreshed from Google Patents.
US3453844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulky warp-knit fabrics
Assignee: Onderzoekings Instituut Research
•
Filing: 1968-06-04
•
Granted: 1969-07-08
•
Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 Willem Heij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:11
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US577702A
Cited
US2985002A
Cited
US1993766A
Cited
US2535376A
Cited
US2674109A
Cited
US2818713A
Cited
US3036448A
Cited
US2996906A
Cited
US3222893A
Cited
US3254510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |