Patent US1551900A successfully refreshed from Google Patents.
US1551900A
Expired / Lapsed
US
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Safety device
Assignee: Individual
•
Filing: 1924-12-05
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Granted: 1925-09-01
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Expires: 1944-12-05
Abstract
No abstract record available.
Inventors
- 👤 Robert L Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:50
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0078; B23Q11/0082; B27; B27G; B27G19/00; B27G19/02; B27G19/025; F; F16; F16P; F16P3/00; F16P3/12; Y; Y10; Y10S; Y10S83/00; Y10S83/01; Y10T; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/773; Y10T83/95; Y10T83/96
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) | 1928-08-31 | 1929-03-02 | 1929-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-31 | 1933-03-02 | 1933-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-31 | 1937-03-02 | 1937-09-01 | $7700.00 | Window Closed / Lapsed |