US3010451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke pipe damper
Assignee: Hodgins Combustion Devices Ltd
•
Filing: 1958-11-28
•
Granted: 1961-11-28
•
Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Hodgins William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
F; F23; F23N; F23N3/00; F23N3/08; F23N3/085; F23L; F23L11/00; F23L11/005; F23N2235/00; F23N2235/02; F23N2235/04; F23N2235/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |