US1962820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of repairing and strengthening metal bridges of the truss type and like structures
Assignee: Individual
•
Filing: 1932-04-07
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Granted: 1934-06-12
•
Expires: 1952-04-07
Abstract
No abstract record available.
Inventors
- 👤 Knight Arthur Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:07
CPC Classifications
E; E01; E01D; E01D22/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49618; Y10T29/49718; Y10T29/49721; Y10T29/49723; Y10T29/49725; Y10T29/49726; Y10T29/49728; Y10T29/4973; Y10T29/49826; Y10T29/4984
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-06-11 | 1937-12-11 | 1938-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-11 | 1941-12-11 | 1942-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-11 | 1945-12-11 | 1946-06-12 | $7700.00 | Window Closed / Lapsed |