US2706016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction pump
Assignee: Individual
•
Filing: 1951-05-10
•
Granted: 1955-04-12
•
Expires: 1971-05-10
Abstract
No abstract record available.
Inventors
- 👤 Schlumbohm Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:20
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/08; F04D17/16; F04D17/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1408736A
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US1831369A
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US1926933A
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US1854427A
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US1956587A
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US2034323A
Cited
US2223672A
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US2272746A
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US2351356A
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US2462476A
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US2632598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |