US672556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well-casing.
Assignee: Individual
•
Filing: 1900-06-25
•
Granted: 1901-04-23
•
Expires: 1920-06-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Hunick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/107; F16L27/11; F16L27/111
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) | 1904-04-22 | 1904-10-22 | 1905-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-04-22 | 1908-10-22 | 1909-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-04-22 | 1912-10-22 | 1913-04-23 | $7700.00 | Window Closed / Lapsed |