US2252816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for applying window sash springs
Assignee: Individual
•
Filing: 1940-10-12
•
Granted: 1941-08-19
•
Expires: 1960-10-12
Abstract
No abstract record available.
Inventors
- 👤 Santrey Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:01
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/60; E05C17/64; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49721; Y10T29/4973; Y10T29/53; Y10T29/53613; Y10T29/53909; Y10T29/53943
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-08-18 | 1945-02-17 | 1945-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-18 | 1949-02-17 | 1949-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-18 | 1953-02-17 | 1953-08-19 | $7700.00 | Window Closed / Lapsed |