Patent US2326383A successfully refreshed from Google Patents.
US2326383A
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Blowing device
Assignee: Ingersoll Rand Co
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Filing: 1942-07-23
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Granted: 1943-08-10
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Expires: 1962-07-23
Abstract
No abstract record available.
Inventors
- 👤 William A Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:18
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/01; E21B21/011; E21B21/012
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) | 1946-08-09 | 1947-02-08 | 1947-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-09 | 1951-02-08 | 1951-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-09 | 1955-02-08 | 1955-08-10 | $7700.00 | Window Closed / Lapsed |