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US1901981A
Expired / Lapsed
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Motor-driven mechanical hammer
Assignee: Individual
•
Filing: 1932-01-11
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Granted: 1933-03-21
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Expires: 1952-01-11
Abstract
No abstract record available.
Inventors
- 👤 Ousback Mats Gosta Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:52
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/062; F; F16; F16H; F16H21/00; F16H21/46; F16H21/50; B25D2211/00; B25D2211/003; B25D2250/00; B25D2250/005; B25D2250/021; B25D2250/245; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208; Y10T74/18296; Y10T74/18336
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) | 1936-03-20 | 1936-09-19 | 1937-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-20 | 1940-09-19 | 1941-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-20 | 1944-09-19 | 1945-03-21 | $7700.00 | Window Closed / Lapsed |