US1106725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace-wall construction.
Assignee: Individual
•
Filing: 1913-05-13
•
Granted: 1914-08-11
•
Expires: 1933-05-13
Abstract
No abstract record available.
Inventors
- 👤 Norman E Maccallum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:10
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/12; F27D; F27D1/00
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) | 1917-08-10 | 1918-02-09 | 1918-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-08-10 | 1922-02-09 | 1922-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-08-10 | 1926-02-09 | 1926-08-11 | $7700.00 | Window Closed / Lapsed |