US2989005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid apparatus
Assignee: International Business Machines Corp
•
Filing: 1958-05-28
•
Granted: 1961-06-20
•
Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Bayard G Gardineer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:18
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/06; F01B1/0641; F01B1/0644; F01B1/0648; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B13/063; F01B13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736267A
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US1673514A
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US1895353A
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US2292181A
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US2383060A
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US2454418A
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US2481754A
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GB737584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |