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US1769314A
Expired / Lapsed
US
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Door lock
Assignee: RY LOCK Co Ltd
•
Filing: 1929-03-08
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Granted: 1930-07-01
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Expires: 1949-03-08
Abstract
No abstract record available.
Inventors
- 👤 John A Rymer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:26
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10S; Y10S292/00; Y10S292/27; Y10T; Y10T292/00; Y10T292/82; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5416; Y10T70/5456; Y10T70/546; Y10T70/5496
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) | 1933-06-30 | 1933-12-30 | 1934-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-30 | 1937-12-30 | 1938-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-30 | 1941-12-30 | 1942-07-01 | $7700.00 | Window Closed / Lapsed |