US2839006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps for high vapor pressure liquids
Assignee: MW Kellogg Co
•
Filing: 1956-07-12
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Granted: 1958-06-17
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Hays C Mayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:40
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/106; F04D29/108; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/083; F04D29/58; F04D29/586; F04D9/00; Y; Y10; Y10S; Y10S417/00; Y10S417/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |