Patent US300730A successfully refreshed from Google Patents.
US300730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ivianufacture of combined metal plates
Assignee: —
•
Filing: —
•
Granted: 1884-06-17
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Expires: 1901-06-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:49
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/12; B; B32; B32B; B32B15/00; B32B15/01; B32B15/011; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49991; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958
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) | 1887-06-17 | 1887-12-17 | 1888-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-06-17 | 1891-12-17 | 1892-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-06-17 | 1895-12-17 | 1896-06-17 | $7700.00 | Window Closed / Lapsed |