US3478549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pick resistant lock unit
Assignee: Schlage Lock Co LLC
•
Filing: 1967-06-19
•
Granted: 1969-11-18
•
Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Schlage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:09
CPC Classifications
E; E05; E05B; E05B27/00; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7667; Y10T70/7684; Y10T70/778; Y10T70/7791; Y10T70/7836; Y10T70/7876; Y10T70/7915; Y10T70/7932; Y10T70/7944; Y10T70/80; Y10T70/8432; Y10T70/8595
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1280633A
Cited
US1172203A
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US1257987A
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US1463495A
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US1573791A
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US1917778A
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US2049548A
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US2690070A
Cited
US3151477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |