US3017931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe hanger
Assignee: MCEVOY CO
•
Filing: 1958-06-23
•
Granted: 1962-01-23
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Jackson
- 👤 Allen F Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:54
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/0422; E21B33/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733938A
Cited
US1835891A
Cited
US1910634A
Cited
US2199588A
Cited
US2578056A
Cited
US2689139A
Cited
US2897895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |