Patent US2772838A successfully refreshed from Google Patents.
Patent US1680000A successfully refreshed from Google Patents.
Patent US2710281A successfully refreshed from Google Patents.
US2710281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing machines for regenerative ovens
Assignee: Beazer East Inc
•
Filing: 1950-12-22
•
Granted: 1955-06-07
•
Expires: 1970-12-22
Abstract
No abstract record available.
Inventors
- 👤 Weissenborn Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:25
CPC Classifications
F; F28; F28D; F28D17/00; F28D17/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US816973A
Cited
US1246114A
Cited
US1597365A
Cited
US1881528A
Cited
FR726036A
Cited
US2211988A
Cited
US2554818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |