US2507511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator door latch
Assignee: Rockwell Manufacturing Co
•
Filing: 1945-09-19
•
Granted: 1950-05-16
•
Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 William F Freidag
- 👤 Wendell W Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:45
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/06; Y; Y10; Y10S; Y10S292/00; Y10S292/71; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/082; Y10T292/0894; Y10T292/0895; Y10T292/0907
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US261356A
Cited
US326331A
Cited
US1140553A
Cited
US1191679A
Cited
US1348028A
Cited
US1579619A
Cited
US2195223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |