US2772870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary boring head having radially adjustable cutting arms
Assignee: Goodman Manufacturing Co LP
•
Filing: 1956-01-04
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Granted: 1956-12-04
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Expires: 1976-01-04
Abstract
No abstract record available.
Inventors
- 👤 Edward L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8598; Y10T408/85985
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1953402A
Cited
US2730345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |