US742223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-saw.
Assignee: National Tube Co
•
Filing: 1902-04-10
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Granted: 1903-10-27
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Expires: 1922-04-10
Abstract
No abstract record available.
Inventors
- 👤 Peter C Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:50
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/181; B27B5/184; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/7755; Y10T83/7763; Y10T83/7776; Y10T83/778; Y10T83/7788; Y10T83/7793
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) | 1906-10-26 | 1907-04-27 | 1907-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-10-26 | 1911-04-27 | 1911-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-10-26 | 1915-04-27 | 1915-10-27 | $7700.00 | Window Closed / Lapsed |