Patent US2517853A successfully refreshed from Google Patents.
US2517853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding tanks
Assignee: Dayton Pump and Manufacturing Co
•
Filing: 1946-02-20
•
Granted: 1950-08-08
•
Expires: 1966-02-20
Abstract
No abstract record available.
Inventors
- 👤 Earl E Eickmeyer
- 👤 Samuel O Mains
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:27
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035; B23K9/0026; Y; Y10; Y10S; Y10S29/00; Y10S29/048
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US392853A
Cited
US1238257A
Cited
US1550651A
Cited
US1517492A
Cited
US1684128A
Cited
GB261176A
Cited
US2020830A
Cited
US2091308A
Cited
US2113699A
Cited
US2219742A
Cited
US2327731A
Cited
US2320079A
Cited
US2313393A
Cited
US2308340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |