US1696344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-operating mechanism
Assignee: Individual
•
Filing: 1925-10-27
•
Granted: 1928-12-25
•
Expires: 1945-10-27
Abstract
No abstract record available.
Inventors
- 👤 Frank J Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:45
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/616; E05F15/622; E05F17/00; E05F17/004; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18072
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) | 1931-12-25 | 1932-06-25 | 1932-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-25 | 1936-06-25 | 1936-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-25 | 1940-06-25 | 1940-12-25 | $7700.00 | Window Closed / Lapsed |