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US648904A
Expired / Lapsed
US
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Water-cooler.
Assignee: Individual
•
Filing: 1899-07-17
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Granted: 1900-05-01
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Expires: 1919-07-17
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86187
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) | 1903-05-01 | 1903-10-31 | 1904-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-05-01 | 1907-10-31 | 1908-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-05-01 | 1911-10-31 | 1912-05-01 | $7700.00 | Window Closed / Lapsed |