Patent US2535328A successfully refreshed from Google Patents.
US15823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge
Assignee: —
•
Filing: —
•
Granted: 1856-09-30
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Expires: 1873-09-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:19
CPC Classifications
E; E01; E01D; E01D4/00
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) | 1859-09-30 | 1860-03-31 | 1860-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1863-09-30 | 1864-03-31 | 1864-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1867-09-30 | 1868-03-31 | 1868-09-30 | $7700.00 | Window Closed / Lapsed |