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US90015A
Expired / Lapsed
US
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Improvement in water-cocks
Assignee: —
•
Filing: —
•
Granted: 1869-05-11
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Expires: 1886-05-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:30
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D35/04
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) | 1872-05-10 | 1872-11-09 | 1873-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1876-05-10 | 1876-11-09 | 1877-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1880-05-10 | 1880-11-09 | 1881-05-11 | $7700.00 | Window Closed / Lapsed |