US2831325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for liquefied gases
Assignee: Herrick L Johnston Inc
•
Filing: 1955-04-28
•
Granted: 1958-04-22
•
Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Leslie E White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/06; F04B15/08; F04B23/00; F04B23/02; F04B23/021; F04B23/023; F04B5/00; F04B5/02; F04B53/00; F04B53/08; F04B53/14; F04B53/143; F04B53/16; F04B53/162; F04B53/164; Y; Y10; Y10S; Y10S417/00; Y10S417/901
Claims Analysis
Total Claims: 0
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US543773A
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US574353A
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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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |