US3059698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing suspension
Assignee: MCEVOY CO
•
Filing: 1956-12-05
•
Granted: 1962-10-23
•
Expires: 1976-12-05
Abstract
No abstract record available.
Inventors
- 👤 Ray S Burns
- 👤 Allen F Rhodes
- 👤 Eichenberg Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:03
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2148327A
Cited
US2335355A
Cited
US2241288A
Cited
US2442548A
Cited
US2583316A
Cited
US2724440A
Cited
US2794505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |