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US2188158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw driver
Assignee: Individual
•
Filing: 1937-03-03
•
Granted: 1940-01-23
•
Expires: 1957-03-03
Abstract
No abstract record available.
Inventors
- 👤 George L Rock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/06; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17811; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1527; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312
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) | 1943-01-22 | 1943-07-24 | 1944-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-22 | 1947-07-24 | 1948-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-22 | 1951-07-24 | 1952-01-23 | $7700.00 | Window Closed / Lapsed |