US2095692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill
Assignee: Individual
•
Filing: 1936-12-12
•
Granted: 1937-10-12
•
Expires: 1956-12-12
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Everheart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:51
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/086; B; B25; B25D; B25D17/00; B25D17/26; B25D17/265
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) | 1940-10-11 | 1941-04-12 | 1941-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-11 | 1945-04-12 | 1945-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-11 | 1949-04-12 | 1949-10-12 | $7700.00 | Window Closed / Lapsed |