US2201159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring or drilling tool
Assignee: PHILPLUG PRODUCTS Ltd
•
Filing: 1938-04-22
•
Granted: 1940-05-21
•
Expires: 1958-04-22
Abstract
No abstract record available.
Inventors
- 👤 Clow Alfred Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:58
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/02; E; E21; E21B; E21B10/00; E21B10/44; E21B10/445; B23B2251/00; B23B2251/18; B23B2251/24; B23B2251/241; B23B2251/40; B23B2251/406; B23B2251/46; B23B2251/48; B23B2260/00; B23B2260/072
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1943-05-21 | 1943-11-20 | 1944-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-21 | 1947-11-20 | 1948-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-21 | 1951-11-20 | 1952-05-21 | $7700.00 | Window Closed / Lapsed |