US3514222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering piston pump
Assignee: Individual
•
Filing: 1967-12-13
•
Granted: 1970-05-26
•
Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 George Petrovich Korotkov
- 👤 Ernst Yakovlevich Sapozhnikov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:06
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/14; G01F3/16; F; F04; F04B; F04B19/00; F04B19/02; F04B19/025; F04B49/00; F04B49/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2139155A
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US2654999A
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US2910943A
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US2977765A
Cited
US3046894A
Cited
US3060690A
Cited
US3270674A
Cited
US3282217A
Cited
US3302752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |