US2013412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door construction
Assignee: Individual
•
Filing: 1932-02-08
•
Granted: 1935-09-03
•
Expires: 1952-02-08
Abstract
No abstract record available.
Inventors
- 👤 Koenig Elmer Edward
- 👤 Mills George Mckim
- 👤 Hult Warner Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:56
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/72; E06B3/725; E06B3/726; E06B3/728
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) | 1938-09-02 | 1939-03-04 | 1939-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-02 | 1943-03-04 | 1943-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-02 | 1947-03-04 | 1947-09-03 | $7700.00 | Window Closed / Lapsed |