Patent US2349156A successfully refreshed from Google Patents.
US2349156A
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US
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Offset drilling attachment
Assignee: Chicago Pneumatic Tool Co LLC
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Filing: 1942-03-13
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Granted: 1944-05-16
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Expires: 1962-03-13
Abstract
No abstract record available.
Inventors
- 👤 Howard R Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:06
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046; B23B; B23B45/00; B23B45/003; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/453; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
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) | 1947-05-16 | 1947-11-15 | 1948-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-16 | 1951-11-15 | 1952-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-16 | 1955-11-15 | 1956-05-16 | $7700.00 | Window Closed / Lapsed |