US2230783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operating mechanism
Assignee: Consolidated Car Heating Co Inc
•
Filing: 1938-12-27
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Granted: 1941-02-04
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Expires: 1958-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Parsons
- 👤 Frederick Kunst Van Almelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:28
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/614; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/606; E05Y2201/62; E05Y2201/622; E05Y2201/644; E05Y2201/656; E05Y2900/00; E05Y2900/50; E05Y2900/51
Claims Analysis
Total Claims: 0
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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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |