US2989227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic pump
Assignee: Statham Instruments Inc
•
Filing: 1959-01-19
•
Granted: 1961-06-20
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Louis D Statham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
F; F04; F04B; F04B33/00; F04B33/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753530A
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US767527A
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US767526A
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US1019507A
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US1263401A
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US1267635A
Cited
US1794356A
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US2163885A
Cited
US2686090A
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US2759329A
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US2880043A
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 |