Patent US320991A successfully refreshed from Google Patents.
US320991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ipecification
Assignee: —
•
Filing: —
•
Granted: 1885-06-30
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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
2026-10-24 14:32
CPC Classifications
A; A44; A44C; A44C7/00; A44C7/003; Y; Y10; Y10T; Y10T24/00; Y10T24/36; Y10T24/3683; Y10T24/3685; Y10T24/41; Y10T24/46; Y10T24/4604; Y10T24/4605; Y10T24/4609; Y10T24/4621
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 |