Patent US2314218A successfully refreshed from Google Patents.
US2314218A
Expired / Lapsed
US
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Safety device
Assignee: Ingersoll Rand Co
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Filing: 1942-09-03
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Granted: 1943-03-16
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Expires: 1962-09-03
Abstract
No abstract record available.
Inventors
- 👤 Francis A Jimerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:41
CPC Classifications
B; B24; B24B; B24B55/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1026; Y10T137/108; Y10T137/1153; Y10T137/1624; Y10T137/1632; Y10T137/1669
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) | 1946-03-15 | 1946-09-14 | 1947-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-15 | 1950-09-14 | 1951-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-15 | 1954-09-14 | 1955-03-16 | $7700.00 | Window Closed / Lapsed |