US1930285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built up metal tube, frame and skeletonized metal member of high strength weight, and method of forming same
Assignee: Individual
•
Filing: 1929-05-27
•
Granted: 1933-10-10
•
Expires: 1949-05-27
Abstract
No abstract record available.
Inventors
- 👤 Roy H Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/02; A; A63; A63B; A63B49/00; A63B49/02; A63B49/03; A63B49/12; A63B60/00; A63B60/48; B; B64; B64C; B64C3/00; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/08; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0493; F16B9/00; F16B9/05; F16B9/052; A63B60/06; A63B60/08; A63B60/10; A63B60/50; A63B60/54; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T403/00; Y10T403/33; Y10T403/335
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) | 1936-10-09 | 1937-04-10 | 1937-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-09 | 1941-04-10 | 1941-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-09 | 1945-04-10 | 1945-10-10 | $7700.00 | Window Closed / Lapsed |