US2935154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature air conditioning
Assignee: Midland Ross Corp
•
Filing: 1957-04-22
•
Granted: 1960-05-03
•
Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Gilbert A Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:52
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F2003/144; F24F2003/1458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108248A
Cited
US2147248A
Cited
US2090466A
Cited
US2235004A
Cited
US2192126A
Cited
US2279938A
Cited
US2420993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |