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Patent US44720A successfully refreshed from Google Patents.
US44720A
Expired / Lapsed
US
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Assignee: —
•
Filing: —
•
Granted: 1864-10-18
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Expires: 1881-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:38
CPC Classifications
D; D05; D05B; D05B47/00; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3911
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) | 1867-10-18 | 1868-04-18 | 1868-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1871-10-18 | 1872-04-18 | 1872-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1875-10-18 | 1876-04-18 | 1876-10-18 | $7700.00 | Window Closed / Lapsed |