US2810600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonreversible keyhole connection for mounting plates
Assignee: Schlage Lock Co LLC
•
Filing: 1954-11-26
•
Granted: 1957-10-22
•
Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Kendrick Marron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:35
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/02; E05B3/00; E05B3/06; Y; Y10; Y10T; Y10T292/00; Y10T292/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US109409A
Cited
US1703325A
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US2203397A
Cited
US2321157A
Cited
US2555090A
Cited
US2491783A
Cited
US2627637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |