US1928734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen and sash fastener
Assignee: Individual
•
Filing: 1932-10-17
•
Granted: 1933-10-03
•
Expires: 1952-10-17
Abstract
No abstract record available.
Inventors
- 👤 Nels L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:39
CPC Classifications
E; E05; E05F; E05F11/00; Y; Y10; Y10S; Y10S292/00; Y10S292/20; Y10S292/35; Y10T; Y10T292/00; Y10T292/08; Y10T292/0863; Y10T292/0867; Y10T292/0886; Y10T292/0887; Y10T292/0891; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0918; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1086
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) | 1936-10-02 | 1937-04-03 | 1937-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-02 | 1941-04-03 | 1941-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-02 | 1945-04-03 | 1945-10-03 | $7700.00 | Window Closed / Lapsed |