Patent US727759A successfully refreshed from Google Patents.
US727759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire-rope socket for well-drilling tools.
Assignee: Individual
•
Filing: 1902-03-27
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Granted: 1903-05-12
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Expires: 1922-03-27
Abstract
No abstract record available.
Inventors
- 👤 Edward Double
- 👤 Frank J Karten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:04
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/04; F16D; F16D1/00; F16D1/06; F16D1/064; F16D1/072; Y; Y10; Y10T; Y10T403/00; Y10T403/49
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) | 1906-05-11 | 1906-11-10 | 1907-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-05-11 | 1910-11-10 | 1911-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-05-11 | 1914-11-10 | 1915-05-12 | $7700.00 | Window Closed / Lapsed |