Patent US5027810A successfully refreshed from Google Patents.
US1904049A
Expired / Lapsed
US
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Diamond charged cutting tool bit
Assignee: General Electric Co
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Filing: 1929-09-05
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Granted: 1933-04-18
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Expires: 1949-09-05
Abstract
No abstract record available.
Inventors
- 👤 Samuel L Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:45
CPC Classifications
C; C22; C22C; C22C26/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10S76/00; Y10S76/05; Y10T; Y10T407/00; Y10T407/26; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-04-17 | 1936-10-17 | 1937-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-04-17 | 1940-10-17 | 1941-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-04-17 | 1944-10-17 | 1945-04-18 | $7700.00 | Window Closed / Lapsed |