US1392497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1920-01-07
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Granted: 1921-10-04
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Expires: 1940-01-07
Abstract
No abstract record available.
Inventors
- 👤 Harmer Joseph Justice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:58
CPC Classifications
F; F21; F21S; F21S10/00; F21S10/02; H; H05; H05B; H05B31/00; H05B31/02; H05B31/04; F21W; F21W2131/00; F21W2131/40; F21W2131/406
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) | 1924-10-03 | 1925-04-04 | 1925-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-10-03 | 1929-04-04 | 1929-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-10-03 | 1933-04-04 | 1933-10-04 | $7700.00 | Window Closed / Lapsed |