US1068991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flue-cutter.
Assignee: Individual
•
Filing: 1912-05-03
•
Granted: 1913-07-29
•
Expires: 1932-05-03
Abstract
No abstract record available.
Inventors
- 👤 Wallace E Dunkerley
- 👤 Bernard C King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/14; B23D21/145
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) | 1916-07-28 | 1917-01-27 | 1917-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-07-28 | 1921-01-27 | 1921-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-07-28 | 1925-01-27 | 1925-07-29 | $7700.00 | Window Closed / Lapsed |