US3529444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular knitting machines
Assignee: G Billi and C SpA
•
Filing: 1968-03-01
•
Granted: 1970-09-22
•
Expires: 1988-03-01
Abstract
No abstract record available.
Inventors
- 👤 Luciano Romoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:07
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10; D04B35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3043991A
Cited
GB572941A
Cited
US2506645A
Cited
US2636367A
Cited
US2933909A
Cited
US3004417A
Cited
US2963890A
Cited
US3317734A
Cited
US3397556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |