US2901164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generated rotor form
Assignee: Ingersoll Rand Co
•
Filing: 1957-03-18
•
Granted: 1959-08-25
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Whitfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:41
CPC Classifications
B; B23; B23F; B23F15/00; B23F15/08; B23Q; B23Q27/00; B23Q27/006; F; F01; F01C; F01C1/00; F01C1/08; F01C1/082; F01C1/084
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |