US2440012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device
Assignee: Individual
•
Filing: 1944-05-29
•
Granted: 1948-04-20
•
Expires: 1964-05-29
Abstract
No abstract record available.
Inventors
- 👤 Gabriel D Haver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:39
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/03; G09F3/0305; G09F3/0347; G09F3/0352; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/39; Y10T24/3902; Y10T24/3904; Y10T24/3913; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1055002A
Cited
CH128870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |