US2931676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window lock
Assignee: Individual
•
Filing: 1958-07-30
•
Granted: 1960-04-05
•
Expires: 1978-07-30
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Wroughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
E; E05; E05F; E05F11/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; Y; Y10; Y10S; Y10S292/00; Y10S292/09; Y10S292/20; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1085; Y10T292/1086; Y10T292/1092; Y10T292/1093; Y10T292/31; Y10T292/331; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5146; Y10T70/515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1184638A
Cited
US1715590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |