US2859997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock retractor mechanism
Assignee: Schlage Lock Co LLC
•
Filing: 1954-07-12
•
Granted: 1958-11-11
•
Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Armin H Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:40
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0989; Y10T292/099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2217131A
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US2314488A
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US2346618A
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US2370690A
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US2308321A
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US2507860A
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US2547256A
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US2618955A
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US2711920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |