US2516630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window lock
Assignee: Individual
•
Filing: 1948-04-19
•
Granted: 1950-07-25
•
Expires: 1968-04-19
Abstract
No abstract record available.
Inventors
- 👤 Harold J Hufnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:18
CPC Classifications
E; E05; E05F; E05F11/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; Y; Y10; Y10S; Y10S292/00; Y10S292/20; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/62; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
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) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |