US2746141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of welding a tube
Assignee: Bundy Tubing Co
•
Filing: 1950-11-27
•
Granted: 1956-05-22
•
Expires: 1970-11-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Hobrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/08; B23K11/087; B23K11/0873; B21; B21C; B21C37/00; B21C37/06; B21C37/08; C; C21; C21D; C21D9/00; C21D9/50; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12292; Y10T428/12347
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1661970A
Cited
US1506532A
Cited
US1712507A
Cited
US1740033A
Cited
US1893926A
Cited
US1767220A
Cited
US1872276A
Cited
US1984300A
Cited
US2024485A
Cited
US2197962A
Cited
US2156952A
Cited
US2380107A
Cited
US2329938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |