Patent US307516A successfully refreshed from Google Patents.
US307516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gustin m
Assignee: —
•
Filing: —
•
Granted: 1884-11-04
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Expires: 1901-11-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:41
CPC Classifications
F; F24; F24C; F24C13/00; Y; Y10; Y10S; Y10S137/00; Y10S137/901; Y10S251/00; Y10S251/90; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87748
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) | 1887-11-04 | 1888-05-05 | 1888-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-11-04 | 1892-05-05 | 1892-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-11-04 | 1896-05-05 | 1896-11-04 | $7700.00 | Window Closed / Lapsed |