US2302487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow core flush panel door
Assignee: Individual
•
Filing: 1941-03-24
•
Granted: 1942-11-17
•
Expires: 1961-03-24
Abstract
No abstract record available.
Inventors
- 👤 Fred S Beiger
- 👤 Robert I Eustis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:57
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/7015; E06B3/7017; E06B2003/7094
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) | 1945-11-16 | 1946-05-18 | 1946-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-16 | 1950-05-18 | 1950-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-16 | 1954-05-18 | 1954-11-17 | $7700.00 | Window Closed / Lapsed |