US3504645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed conveyor return run for incinerators
Assignee: BEAUMONT BIRCH CO
•
Filing: 1968-08-15
•
Granted: 1970-04-07
•
Expires: 1988-08-15
Abstract
No abstract record available.
Inventors
- 👤 William G Davenport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
F; F23; F23J; F23J1/00; F23J1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2983234A
Cited
US3133804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |