US438592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
And william h
Assignee: Pur Water Purification Products Inc
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Filing: —
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Granted: 1890-10-14
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Expires: 1907-10-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:55
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/24; H01R4/2475; H10; H10W; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20; Y; Y10; Y10S; Y10S200/00; Y10S200/24
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) | 1893-10-13 | 1894-04-14 | 1894-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-10-13 | 1898-04-14 | 1898-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-10-14 | 1902-04-15 | 1902-10-15 | $7700.00 | Window Closed / Lapsed |