Patent US3067481A successfully refreshed from Google Patents.
US3067481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flaw detecting and thread tensioning device
Assignee: Akzona Inc
•
Filing: 1959-01-28
•
Granted: 1962-12-11
•
Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 Hammink Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:32
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/06; B65H63/061; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US466088A
Cited
US653174A
Cited
US843435A
Cited
US1728303A
Cited
US1743650A
Cited
US2025383A
Cited
US2289232A
Cited
US2209839A
Cited
US2292986A
Cited
US2373513A
Cited
US2656125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |