Patent US2314181A successfully refreshed from Google Patents.
US2314181A
Expired / Lapsed
US
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Bituminous material
Assignee: Quaker Oats Co
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Filing: 1938-11-21
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Granted: 1943-03-16
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Expires: 1958-11-21
Abstract
No abstract record available.
Inventors
- 👤 Hans F Winterkorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:01
CPC Classifications
C; C08; C08L; C08L95/00; Y; Y10; Y10S; Y10S106/00; Y10S106/07; Y10S260/00; Y10S260/14
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) | 1946-03-15 | 1946-09-14 | 1947-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-15 | 1950-09-14 | 1951-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-15 | 1954-09-14 | 1955-03-16 | $7700.00 | Window Closed / Lapsed |