US2867036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for welding tube nipples
Assignee: Walther & A G Cie
•
Filing: 1955-05-20
•
Granted: 1959-01-06
•
Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Hovelmann Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:46
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0288
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1736610A
Cited
US1772273A
Cited
US2034808A
Cited
US2128111A
Cited
US2243402A
Cited
US2221934A
Cited
US2361636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |