Patent US2673106A successfully refreshed from Google Patents.
US2673106A
Expired / Lapsed
US
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Safety window lock
Assignee: Individual
•
Filing: 1952-09-11
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Granted: 1954-03-23
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Expires: 1972-09-11
Abstract
No abstract record available.
Inventors
- 👤 Alfred N Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:33
CPC Classifications
E; E05; E05F; E05F11/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; Y; Y10; Y10T; Y10T292/00; Y10T292/03; Y10T292/08; Y10T292/0801; Y10T292/0803; Y10T292/0848; Y10T292/0849; Y10T292/34; Y10T292/71; Y10T292/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |