US2189700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated hammer
Assignee: Sabine Steel & Construction Co
•
Filing: 1938-07-09
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Granted: 1940-02-06
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Expires: 1958-07-09
Abstract
No abstract record available.
Inventors
- 👤 James F Britten
- 👤 Ernest S King
- 👤 Phillip L Baumgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/12; B; B25; B25D; B25D11/00; B25D11/06; B25D11/064; B25D17/00; B25D17/20; B25D2217/00; B25D2217/0057; B25D2217/0061
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) | 1943-02-05 | 1943-08-07 | 1944-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-05 | 1947-08-07 | 1948-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-05 | 1951-08-07 | 1952-02-06 | $7700.00 | Window Closed / Lapsed |