Patent US2438999A successfully refreshed from Google Patents.
US3464230A
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US
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Systems for producing cold and ejectors in such systems
Assignee: US Philips Corp
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Filing: 1967-06-28
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Granted: 1969-09-02
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Johan Adriaan Rietdijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:32
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J1/0275; F25J1/0276; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/462; F25B; F25B1/00; F25B1/10; F25B9/00; F25B9/08; F25J1/003; F25J1/0047; F25J1/0052; F25J1/006; F25J1/0062; F25J1/0065; F25B2341/00; F25B2341/001; F25B2341/0012; F25B2341/0013; F25B2500/00; F25B2500/01; F25J2270/00; F25J2270/90; F25J2270/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2000741A
Cited
US2000762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |