US2252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in the construction of vessels or apparatus for preserving paint
Assignee: —
•
Filing: —
•
Granted: 1841-09-11
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Expires: 1858-09-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:49
CPC Classifications
G; G06; G06Q; G06Q20/00; G06Q20/08; G06Q20/10; G06Q20/102; B; B65; B65D; B65D35/00; B65D35/02; B65D35/12
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) | 1844-09-10 | 1845-03-12 | 1845-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1848-09-10 | 1849-03-12 | 1849-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1852-09-10 | 1853-03-12 | 1853-09-11 | $7700.00 | Window Closed / Lapsed |