US2167875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Cornell Iron Works Inc
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Filing: 1936-07-14
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Granted: 1939-08-01
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Expires: 1956-07-14
Abstract
No abstract record available.
Inventors
- 👤 Milton L Cornell
- 👤 August H Graff
- 👤 Rowland K Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:20
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/18; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/527; Y10T70/5296; Y10T70/5301; Y10T70/531
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) | 1942-07-31 | 1943-01-30 | 1943-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-31 | 1947-01-30 | 1947-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-31 | 1951-01-30 | 1951-08-01 | $7700.00 | Window Closed / Lapsed |