US2829598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensate pump and control means
Assignee: March Manufacturing Co
•
Filing: 1956-08-23
•
Granted: 1958-04-08
•
Expires: 1976-08-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick N Zimmermann
- 👤 Willy E Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:41
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; F04D15/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1220954A
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US1804846A
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US1812874A
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US1960389A
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US2326360A
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US2418221A
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US2589089A
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US2669934A
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US2766696A
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US2752461A
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US2748220A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |