US1640931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sash-regulating device
Assignee: Individual
•
Filing: 1923-11-19
•
Granted: 1927-08-30
•
Expires: 1943-11-19
Abstract
No abstract record available.
Inventors
- 👤 Karl H Gettner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:42
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/50; E05F11/505; E05F11/48; E05F11/481; E05F11/483; E05F11/486; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55
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) | 1930-08-29 | 1931-02-28 | 1931-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-29 | 1935-02-28 | 1935-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-29 | 1939-02-28 | 1939-08-30 | $7700.00 | Window Closed / Lapsed |