US321196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ebeehaedt
Assignee: —
•
Filing: —
•
Granted: 1885-06-30
•
Expires: 1902-06-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:50
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/081; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17957; Y10T279/17965; Y10T408/00; Y10T408/65; Y10T408/66; Y10T408/675; Y10T408/6771; Y10T408/6774; Y10T408/6779; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19642; Y10T74/19688
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) | 1888-06-29 | 1888-12-29 | 1889-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-06-29 | 1892-12-29 | 1893-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-06-29 | 1896-12-29 | 1897-06-30 | $7700.00 | Window Closed / Lapsed |