US2996240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement of oil pumps in compression type refrigerating machines
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1955-12-16
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Granted: 1961-08-15
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Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Stocklein Walter
- 👤 Schmidt Hans
- 👤 Dunkel Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/02; F04B39/0223; F04B39/023; F04B39/0261; F25; F25B; F25B31/00; F25B31/002; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 0
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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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |