Patent US3900803A successfully refreshed from Google Patents.
US1920669A
Expired / Lapsed
US
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Lock for window sashes and doors
Assignee: Individual
•
Filing: 1932-07-08
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Granted: 1933-08-01
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Expires: 1952-07-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Riccelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:19
CPC Classifications
E; E05; E05F; E05F11/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; E05Y2900/148; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/1099; Y10T292/28; Y10T292/283; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5146; Y10T70/515; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791
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) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |