US831887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of compound tubes.
Assignee: National Tube Co
•
Filing: 1905-05-18
•
Granted: 1906-09-25
•
Expires: 1925-05-18
Abstract
No abstract record available.
Inventors
- 👤 John H Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:43
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/001; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T428/00; Y10T428/12; Y10T428/12292; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12937
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1909-09-24 | 1910-03-26 | 1910-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-24 | 1914-03-26 | 1914-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-24 | 1918-03-26 | 1918-09-25 | $7700.00 | Window Closed / Lapsed |