US243256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
heylmun
Assignee: —
•
Filing: —
•
Granted: 1881-06-21
•
Expires: 1898-06-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:19
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/22; F22B37/228; Y; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/6307; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932; Y10T137/7933
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) | 1884-06-20 | 1884-12-20 | 1885-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-06-20 | 1888-12-20 | 1889-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-06-20 | 1892-12-20 | 1893-06-21 | $7700.00 | Window Closed / Lapsed |