Patent US320310A successfully refreshed from Google Patents.
US320310A
Expired / Lapsed
US
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suckeet
Assignee: —
•
Filing: —
•
Granted: 1885-06-16
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Expires: 1902-06-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:34
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0233
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) | 1888-06-15 | 1888-12-15 | 1889-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-06-15 | 1892-12-15 | 1893-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-06-15 | 1896-12-15 | 1897-06-16 | $7700.00 | Window Closed / Lapsed |