US2909288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill steel supporting and storing device
Assignee: Joy Manufacturing Co
•
Filing: 1955-09-16
•
Granted: 1959-10-20
•
Expires: 1975-09-16
Abstract
No abstract record available.
Inventors
- 👤 Mary E Boudette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:23
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/20; E21B19/14; E21B19/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531257A
Cited
US722514A
Cited
US1242305A
Cited
US1477063A
Cited
GB595628A
Cited
US2526245A
Cited
US2806711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |