Patent US2907559A successfully refreshed from Google Patents.
US2907559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-gauging and readily removable cutter bit
Assignee: Goodman Manufacturing Co LP
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Filing: 1955-12-20
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Granted: 1959-10-06
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Brown
- 👤 Robert A Mccallum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:11
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/18; E21C35/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1908161A
Cited
DE550924C
Cited
GB393773A
Cited
US2434256A
Cited
US2483220A
Cited
US2561657A
Cited
US2720392A
Cited
US2766029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |