Patent US1728263A successfully refreshed from Google Patents.
US1728263A
Expired / Lapsed
US
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Mortise night latch
Assignee: Individual
•
Filing: 1928-01-19
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Granted: 1929-09-17
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Expires: 1948-01-19
Abstract
No abstract record available.
Inventors
- 👤 Ellingson Elling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; E05B63/00; E05B63/0056; E05B63/006; Y; Y10; Y10S; Y10S70/00; Y10S70/42; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5531
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) | 1932-09-16 | 1933-03-18 | 1933-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-16 | 1937-03-18 | 1937-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-16 | 1941-03-18 | 1941-09-17 | $7700.00 | Window Closed / Lapsed |