Patent US4537494A successfully refreshed from Google Patents.
Patent US1664356A successfully refreshed from Google Patents.
US1664356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: Individual
•
Filing: 1925-12-03
•
Granted: 1928-03-27
•
Expires: 1945-12-03
Abstract
No abstract record available.
Inventors
- 👤 Dellert Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:46
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/04
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) | 1931-03-27 | 1931-09-26 | 1932-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-27 | 1935-09-26 | 1936-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-27 | 1939-09-26 | 1940-03-27 | $7700.00 | Window Closed / Lapsed |