Patent US3468272A successfully refreshed from Google Patents.
US3468272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed mechanism in sewing machine
Assignee: Aisin Corp
•
Filing: 1967-11-09
•
Granted: 1969-09-23
•
Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Shoji Shimobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:58
CPC Classifications
D; D05; D05B; D05B27/00; D05B27/02; D05B27/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |