US2423490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal spraying method
Assignee: Individual
•
Filing: 1944-05-20
•
Granted: 1947-07-08
•
Expires: 1964-05-20
Abstract
No abstract record available.
Inventors
- 👤 Erhardt Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:31
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/12; B; B05; B05B; B05B7/00; B05B7/16; B05B7/20; B05B7/201; B05B7/203; C23C4/137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1262134A
Cited
US1617166A
Cited
US1776632A
Cited
US1843842A
Cited
US1930373A
Cited
US2092150A
Cited
US2231247A
Cited
US2317173A
Cited
GB548630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |