US2448748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door lock
Assignee: Grand Rapids Store Equipment Co
•
Filing: 1946-03-04
•
Granted: 1948-09-07
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Expires: 1966-03-04
Abstract
No abstract record available.
Inventors
- 👤 Vanderveld Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:28
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0811; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10S70/00; Y10S70/19; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5097; Y10T70/5111; Y10T70/5115; Y10T70/5155; Y10T70/5173; Y10T70/5195
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |