Patent US4050835A successfully refreshed from Google Patents.
US1979267A
Expired / Lapsed
US
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Method and apparatus for testing bituminous and other mixtures
Assignee: Individual
•
Filing: 1929-11-16
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Granted: 1934-11-06
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Expires: 1949-11-16
Abstract
No abstract record available.
Inventors
- 👤 Henry L Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:54
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/42; G01N2203/00; G01N2203/0058; G01N2203/0076; G01N2203/0085; G01N2203/02; G01N2203/025; G01N2203/0256; G01N2203/026; G01N2203/0284; G01N2203/06; G01N2203/0641; G01N2203/0652; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5125
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) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |