US2705128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auger head
Assignee: Austin Powder Co
•
Filing: 1950-03-15
•
Granted: 1955-03-29
•
Expires: 1970-03-15
Abstract
No abstract record available.
Inventors
- 👤 Mcclennan Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:58
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/42; E21B10/43; E21B10/44; E21B10/60; E21B10/62; E21B10/627; E21B10/633; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17863; Y10T279/17871
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1393586A
Cited
US1388490A
Cited
US1468774A
Cited
US1416647A
Cited
US1443344A
Cited
US1767883A
Cited
US2065898A
Cited
US1926635A
Cited
US2504978A
Cited
US2578014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |