US3241457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible motor
Assignee: Ingersoll Rand Co
•
Filing: 1964-05-06
•
Granted: 1966-03-22
•
Expires: 1984-05-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
F; F04; F04C; F04C14/00; F03; F03C; F03C2/00; F03C2/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2319238A
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US2428726A
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US2636513A
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US2799249A
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US2778344A
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US2846984A
Cited
US2980078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |