US2453000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing auger bits
Assignee: IRWIN AUGER BIT Co
•
Filing: 1946-09-17
•
Granted: 1948-11-02
•
Expires: 1966-09-17
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Daulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:53
CPC Classifications
B; B21; B21J; B21J1/00; B21J1/06; B21K; B21K5/00; B21K5/02; B21K5/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US378408A
Cited
US412957A
Cited
US419622A
Cited
US422546A
Cited
US758041A
Cited
US1407794A
Cited
US1450252A
Cited
US1572343A
Cited
US1618791A
Cited
US2159842A
Cited
US2310675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |