Patent US197667A successfully refreshed from Google Patents.
US197667A
Expired / Lapsed
US
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Improvement in couplings for sucker-rods
Assignee: —
•
Filing: —
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Granted: 1877-11-27
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Expires: 1894-11-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/22; Y; Y10; Y10T; Y10T403/00; Y10T403/61; Y10T403/65
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) | 1880-11-26 | 1881-05-28 | 1881-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-11-26 | 1885-05-28 | 1885-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-11-26 | 1889-05-28 | 1889-11-27 | $7700.00 | Window Closed / Lapsed |