US2028825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Service container
Assignee: Individual
•
Filing: 1933-12-20
•
Granted: 1936-01-28
•
Expires: 1953-12-20
Abstract
No abstract record available.
Inventors
- 👤 Christensen Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:07
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/26; F; F25; F25D; F25D3/00; F25D3/12; F25D3/14; F25D2303/00; F25D2303/08; F25D2303/082; F25D2303/0821
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) | 1939-01-27 | 1939-07-29 | 1940-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-27 | 1943-07-29 | 1944-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-27 | 1947-07-29 | 1948-01-28 | $7700.00 | Window Closed / Lapsed |