US2721037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire winding tool
Assignee: Individual
•
Filing: 1951-11-15
•
Granted: 1955-10-18
•
Expires: 1971-11-15
Abstract
No abstract record available.
Inventors
- 👤 Burghardt Paul William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
B; B21; B21F; B21F17/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE312680C
Cited
US464279A
Cited
US730427A
Cited
US1214172A
Cited
US1293151A
Cited
GB253321A
Cited
US1838874A
Cited
GB371389A
Cited
US1904890A
Cited
US2275858A
Cited
US2578753A
Cited
GB589559A
Cited
US2419241A
Cited
US2459504A
Cited
US2579074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |