US2225003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operating mechanism
Assignee: INTERNAT ELEVATOR Co
•
Filing: 1938-09-06
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Granted: 1940-12-17
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Expires: 1958-09-06
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:15
CPC Classifications
B; B66; B66B; B66B13/00; B66B13/24; B66B13/26; E; E05; E05F; E05F15/00; E05F15/40; E05F15/41; E05F15/60; E05F15/603; E05F15/632; E05F15/643; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/104
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) | 1943-12-17 | 1944-06-17 | 1944-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-17 | 1948-06-17 | 1948-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-17 | 1952-06-17 | 1952-12-17 | $7700.00 | Window Closed / Lapsed |