US3474643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knitting process
Assignee: Akzo Nobel UK PLC
•
Filing: 1967-06-02
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Granted: 1969-10-28
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Expires: 1987-06-02
Abstract
No abstract record available.
Inventors
- 👤 Frank Robinson
- 👤 Frederick Nunnerley Chell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:37
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/22; D04B1/10; D04B1/102; D04B1/106; D04B1/24; D04B1/246; D10; D10B; D10B2403/00; D10B2403/03; D10B2403/033; D10B2403/0333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE239959C
Cited
US464118A
Cited
FR401329A
Cited
US1849461A
Cited
US2004699A
Cited
GB411393A
Cited
US3115760A
Cited
US3224231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |