US2368622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window sash operator
Assignee: Frantz Manufacturing Co
•
Filing: 1941-05-09
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Granted: 1945-02-06
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Expires: 1961-05-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Tarvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/32; E05C17/34; E05C17/345; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/282; Y10T403/00; Y10T403/32; Y10T403/32549; Y10T403/32557; Y10T403/32591
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) | 1948-02-06 | 1948-08-07 | 1949-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-06 | 1952-08-07 | 1953-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-06 | 1956-08-07 | 1957-02-06 | $7700.00 | Window Closed / Lapsed |