US2692425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of patching or repairing a metal skin or covering
Assignee: Individual
•
Filing: 1951-06-14
•
Granted: 1954-10-26
•
Expires: 1971-06-14
Abstract
No abstract record available.
Inventors
- 👤 Walter A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:12
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T29/49735; Y10T29/49739
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |