US2520342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool
Assignee: Individual
•
Filing: 1950-03-08
•
Granted: 1950-08-29
•
Expires: 1970-03-08
Abstract
No abstract record available.
Inventors
- 👤 Iver C Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:45
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03435; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8598; Y10T408/85995; Y10T82/00; Y10T82/16; Y10T82/16426; Y10T82/16591
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1962951A
Cited
US2093743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |