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US640217A
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Combined lock and latch.
Assignee: ADDISON J SILVERWOOD
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Filing: 1899-02-20
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Granted: 1900-01-02
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Expires: 1919-02-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas A L Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:00
CPC Classifications
E; E05; E05B; E05B55/00; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5518; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541; Y10T70/8568
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1903-01-02 | 1903-07-04 | 1904-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-02 | 1907-07-04 | 1908-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-02 | 1911-07-04 | 1912-01-03 | $7700.00 | Window Closed / Lapsed |