US2707626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable boring head for continuous mining machine
Assignee: Goodman Manufacturing Co LP
•
Filing: 1953-08-26
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Granted: 1955-05-03
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Cartlidge Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:05
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T82/00; Y10T82/12; Y10T82/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |