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Patent US2415356A successfully refreshed from Google Patents.
US2415356A
Expired / Lapsed
US
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Plasticizer and softener for perbunan and perbunan type rubbers
Assignee: Jasco Inc
•
Filing: 1940-12-21
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Granted: 1947-02-04
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Expires: 1960-12-21
Abstract
No abstract record available.
Inventors
- 👤 Henry B Kellog
- 👤 George E Serniuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20845E
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US1986854A
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US2070991A
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US2018643A
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US2126019A
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US2198970A
Cited
US2109941A
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US2202363A
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US2300587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |