US2159361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace
Assignee: OI Glass Inc
•
Filing: 1936-11-30
•
Granted: 1939-05-23
•
Expires: 1956-11-30
Abstract
No abstract record available.
Inventors
- 👤 Flavius W Atkinson
- 👤 Slayter Games
- 👤 John H Thomas
- 👤 George M Lannan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/09; C03B37/092; C03B37/091; C03B5/00; C03B5/02; C03B5/027; C03B5/033; C03B5/16; C03B5/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |