US2458068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the treatment of material
Assignee: Welding Engineers Inc
•
Filing: 1943-11-25
•
Granted: 1949-01-04
•
Expires: 1963-11-25
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/12; B30B9/16; B30B9/163; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/375; B29C48/38; B29C48/50; B29C48/76; B29C48/03; B29C48/07; B29C48/08; Y; Y10; Y10S; Y10S425/00; Y10S425/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478842A
Cited
US1614526A
Cited
FR695211A
Cited
US2048286A
Cited
US2119162A
Cited
US2334015A
Cited
US2322791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |