US3531033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding of yarns
Assignee: Singer-Cobble Ltd
•
Filing: 1968-04-19
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Granted: 1970-09-29
•
Expires: 1988-04-19
Abstract
No abstract record available.
Inventors
- 👤 Ronald Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:09
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/26; D05C15/32
Claims Analysis
Total Claims: 0
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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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |