Patent US1892829A successfully refreshed from Google Patents.
US3003446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming tubes
Assignee: OLDBERG Manufacturing CO
•
Filing: 1957-09-25
•
Granted: 1961-10-10
•
Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Walter J Ely
- 👤 Adolph A Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:16
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/10; B21C37/108
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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |