Patent US2336525A successfully refreshed from Google Patents.
US2110367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system
Assignee: Detroit Lubricator Co
•
Filing: 1935-07-25
•
Granted: 1938-03-08
•
Expires: 1955-07-25
Abstract
No abstract record available.
Inventors
- 👤 Irving J Kundson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F1/00; F24F1/0007; F24F1/0043; F24F1/0057; F24F1/0059; F24F1/0063; F24F1/0087
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-03-07 | 1941-09-06 | 1942-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-07 | 1945-09-06 | 1946-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-07 | 1949-09-06 | 1950-03-08 | $7700.00 | Window Closed / Lapsed |