Patent US312872A successfully refreshed from Google Patents.
US312872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heney s
Assignee: —
•
Filing: —
•
Granted: 1885-02-24
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Expires: 1902-02-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/86654
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) | 1888-02-24 | 1888-08-25 | 1889-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-02-24 | 1892-08-25 | 1893-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-02-24 | 1896-08-25 | 1897-02-24 | $7700.00 | Window Closed / Lapsed |