US1935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable safety-barge and army-boat
Assignee: —
•
Filing: —
•
Granted: 1841-01-20
•
Expires: 1858-01-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:03
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/06; B63B5/00; B63B5/02; B63B5/04; B63B2007/003
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) | 1844-01-20 | 1844-07-21 | 1845-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1848-01-20 | 1848-07-21 | 1849-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1852-01-20 | 1852-07-21 | 1853-01-20 | $7700.00 | Window Closed / Lapsed |