US1554700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-latch-operating device
Assignee: Individual
•
Filing: 1922-03-02
•
Granted: 1925-09-22
•
Expires: 1942-03-02
Abstract
No abstract record available.
Inventors
- 👤 Anderson Frederick Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:36
CPC Classifications
E; E05; E05C; E05C9/00; E05C9/02; E05C9/028; E05C9/18; E05C9/1825; E05C9/1875; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0853; Y10T292/0908; Y10T292/1043; Y10T292/1075
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) | 1928-09-21 | 1929-03-23 | 1929-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-21 | 1933-03-23 | 1933-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-21 | 1937-03-23 | 1937-09-22 | $7700.00 | Window Closed / Lapsed |