Patent US2158312A successfully refreshed from Google Patents.
US2158312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making a barrel
Assignee: Borg Warner Corp
•
Filing: 1936-02-07
•
Granted: 1939-05-16
•
Expires: 1956-02-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Terrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:57
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/18; B21D51/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-15 | 1942-11-14 | 1943-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-15 | 1946-11-14 | 1947-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-15 | 1950-11-14 | 1951-05-16 | $7700.00 | Window Closed / Lapsed |