Patent US1229473A successfully refreshed from Google Patents.
US1229473A
Expired / Lapsed
US
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Automatic make-and-break device.
Assignee: Individual
•
Filing: 1916-03-30
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Granted: 1917-06-12
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Expires: 1936-03-30
Abstract
No abstract record available.
Inventors
- 👤 Patrick S Keenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/14; H01H3/141; B; B60; B60N; B60N2/00; B60N2/002; B60N2/0021; B60N2/003; B60N2/0033; B60N2/0035; B60N2210/00; B60N2210/40; B60N2210/46; B60N2230/00; B60N2230/30
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) | 1920-06-11 | 1920-12-11 | 1921-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-11 | 1924-12-11 | 1925-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-11 | 1928-12-11 | 1929-06-12 | $7700.00 | Window Closed / Lapsed |