US1774030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic screw driver
Assignee: Barkelew Electric Manufacturing Co
•
Filing: 1929-05-13
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Granted: 1930-08-26
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Expires: 1949-05-13
Abstract
No abstract record available.
Inventors
- 👤 William E Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/04; B23; B23P; B23P19/00; B23P19/04; B23P19/06; E; E01; E01B; E01B29/00; E01B29/24; E01B29/28
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) | 1933-08-25 | 1934-02-24 | 1934-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-08-25 | 1938-02-24 | 1938-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-08-25 | 1942-02-24 | 1942-08-26 | $7700.00 | Window Closed / Lapsed |