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US642413A
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Assignee: Individual
•
Filing: 1899-01-26
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Granted: 1900-01-30
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Expires: 1919-01-26
Abstract
No abstract record available.
Inventors
- 👤 Alexander Armstrong
- 👤 Archibald F Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:52
CPC Classifications
E; E05; E05B; E05B59/00; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/5246; Y10T70/5248; Y10T70/5252; Y10T70/5261
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) | 1903-01-30 | 1903-08-01 | 1904-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-30 | 1907-08-01 | 1908-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-30 | 1911-08-01 | 1912-01-31 | $7700.00 | Window Closed / Lapsed |