US2502857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: DAYSTROM Corp
•
Filing: 1946-02-16
•
Granted: 1950-04-04
•
Expires: 1966-02-16
Abstract
No abstract record available.
Inventors
- 👤 Kipp Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:15
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/007; A47C4/00; A47C4/02; A47C4/03; A47C5/00; A47C5/04; A47C5/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2125985A
Cited
US2461055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |