US2533826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of charging batch to glass furnaces
Assignee: Hartford Empire Co
•
Filing: 1947-06-10
•
Granted: 1950-12-12
•
Expires: 1967-06-10
Abstract
No abstract record available.
Inventors
- 👤 Aaron K Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
C; C03; C03B; C03B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1201664A
Cited
US1361853A
Cited
US1483278A
Cited
US1560070A
Cited
US1594799A
Cited
US1953221A
Cited
US2294373A
Cited
US2281050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |