Patent USRE20639E successfully refreshed from Google Patents.
USRE20639E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined lock and latch
Assignee: —
•
Filing: —
•
Granted: 1938-01-25
•
Expires: 1955-01-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:51
CPC Classifications
E; E05; E05B; E05B35/00; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7537; Y10T70/7915; Y10T70/7932; Y10T70/7944; Y10T70/80; Y10T70/8432; Y10T70/8568; Y10T70/8622
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) | 1941-01-24 | 1941-07-26 | 1942-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-24 | 1945-07-26 | 1946-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-24 | 1949-07-26 | 1950-01-25 | $7700.00 | Window Closed / Lapsed |