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US1574493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-metal door
Assignee: Individual
•
Filing: 1925-08-01
•
Granted: 1926-02-23
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Expires: 1945-08-01
Abstract
No abstract record available.
Inventors
- 👤 Elof R Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:26
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/988; E06B3/70; E06B3/72; E06B3/725; E06B3/726; E06B3/728; E06B3/88; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541
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) | 1929-02-22 | 1929-08-24 | 1930-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-22 | 1933-08-24 | 1934-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-22 | 1937-08-24 | 1938-02-23 | $7700.00 | Window Closed / Lapsed |