Patent US3489445A successfully refreshed from Google Patents.
US3489445A
Expired / Lapsed
US
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Threaded sucker rod joint
Assignee: Individual
•
Filing: 1967-10-18
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Granted: 1970-01-13
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Expires: 1987-10-18
Abstract
No abstract record available.
Inventors
- 👤 Archer W Kammerer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:11
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B17/0426; F04; F04B; F04B53/00; F04B53/14; F04B53/144; F16B; F16B7/00; F16B7/18; F16B7/182; F16L15/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US254477A
Cited
US1059560A
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US2045520A
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US2206166A
Cited
FR871991A
Cited
US2539057A
Cited
US2955847A
Cited
US2834625A
Cited
DE1157568B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |