Patent US2296712A successfully refreshed from Google Patents.
US2296712A
Expired / Lapsed
US
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Laminated product
Assignee: LION OIL REFINING Co
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Filing: 1939-09-28
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Granted: 1942-09-22
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Expires: 1959-09-28
Abstract
No abstract record available.
Inventors
- 👤 Grant Francis Ralph
- 👤 Thomas A Tennyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:46
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/16; C; C09; C09J; C09J195/00; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/34; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31823
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) | 1945-09-21 | 1946-03-23 | 1946-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-21 | 1950-03-23 | 1950-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-21 | 1954-03-23 | 1954-09-22 | $7700.00 | Window Closed / Lapsed |