US2844302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus x
Assignee: —
•
Filing: —
•
Granted: 1958-07-22
•
Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:26
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/58; F04D29/5806; F04B; F04B9/00; F04B9/08; F04B9/12; H; H02; H02K; H02K7/00; H02K7/14; H02K9/00; H02K9/08; H02K9/10; H02K9/12; Y; Y10; Y10S; Y10S417/00; Y10S417/902
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |