US3030935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucker rod and pump rotating apparatus
Assignee: HUNTSINGER ASSOCIATES
•
Filing: 1958-04-29
•
Granted: 1962-04-24
•
Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 James W E Hanes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:20
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; F; F16; F16D; F16D65/00; F16D65/14; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1574
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US642152A
Cited
US1283675A
Cited
US2100324A
Cited
DE875103C
Cited
US2291601A
Cited
US2369345A
Cited
US2622372A
Cited
US2869469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |