US3429137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic drive pump for use in refrigeration systems
Assignee: Carrier Corp
•
Filing: 1967-07-28
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Granted: 1969-02-25
•
Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 John Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:36
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/021; F04D13/024; F04D15/00; F04D15/02; F04D15/0245; F04D15/0254; F25; F25B; F25B15/00; F25B15/02; F25B15/025; G; G01; G01R; G01R23/00; G01R23/02; G01R31/00; G01R31/34; G01R31/343; H; H02; H02K; H02K11/00; H02K11/20; H02K11/21; H02K11/225; H02K11/30; H02K11/33; H02K49/00; H02K49/10; H02K49/104; H02K49/108; H02K5/00; H02K5/04; H02K5/12; H02K5/128; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3332252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |