Patent US2409037A successfully refreshed from Google Patents.
US2409037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door construction
Assignee: Individual
•
Filing: 1944-09-04
•
Granted: 1946-10-08
•
Expires: 1964-09-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Guth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:05
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/92; E06B3/925; E06B3/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-10-07 | 1950-04-08 | 1950-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-07 | 1954-04-08 | 1954-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-07 | 1958-04-08 | 1958-10-08 | $7700.00 | Window Closed / Lapsed |