US2603516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: ROETHEL ENGINEERING Corp
•
Filing: 1947-03-28
•
Granted: 1952-07-15
•
Expires: 1967-03-28
Abstract
No abstract record available.
Inventors
- 👤 John H Roethel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:30
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10S70/00; Y10S70/54; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190625596A
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GB190803491A
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US1036346A
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GB141166A
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US1544960A
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US2012732A
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US2013285A
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US2094413A
Cited
US2143965A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |