Patent US5390664A successfully refreshed from Google Patents.
US326488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedeeic egkeb
Assignee: —
•
Filing: —
•
Granted: 1885-09-15
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Expires: 1902-09-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:47
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B2203/00; C01B2203/02; C01B2203/0205; C01B2203/0227; C01B2203/0233
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) | 1888-09-14 | 1889-03-16 | 1889-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-09-14 | 1893-03-16 | 1893-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-09-14 | 1897-03-16 | 1897-09-15 | $7700.00 | Window Closed / Lapsed |