Patent US1464146A successfully refreshed from Google Patents.
Patent US3436061A successfully refreshed from Google Patents.
US3436061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating sectioned furnace
Assignee: Arthur D Little Inc
•
Filing: 1967-05-25
•
Granted: 1969-04-01
•
Expires: 1987-05-25
Abstract
No abstract record available.
Inventors
- 👤 Robert E Zinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:38
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/20; F27B7/36; F27B7/362; F23; F23G; F23G5/00; F23G5/20; F27B7/02; F23G2203/00; F23G2203/20; F23G2203/211; F27B2007/027; F27B7/04; F27B2007/046; F27B7/14; F27B7/16; F27B7/167; F27B2007/168; F27D; F27D9/00; F27D2009/0002; F27D2009/0005; F27D2009/0008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3042389A
Cited
US3116055A
Cited
US3242888A
Cited
US3295930A
Cited
US3357382A
Cited
US3360250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |