US2842452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose nitrate-liquid polymer oil compositions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-11-22
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Granted: 1958-07-08
•
Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Donald F Koenecke
- 👤 Harold J Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:19
CPC Classifications
C; C09; C09D; C09D115/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COATING COMPOSITION COMPRISING A MIXTURE OF 1 TO 100 PARTS OF CELLULOSE NITRATE AND 100 PARTS OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF BUTADIENE AND COPOLYMERS OF BUTADIENE WITH UP TO 50% STYRENE, SAID POLYMER HAVING A SUBSTANTIAL PROPORTION OF ITS DOUBLE BONDS CONVERTED, TO THE EPOXIDE GROUP
Claim 2
Dependent Claim
53 words
A COATING COMPOSITION COMPRISING A MIXTURE OF 1 TO 100 PARTS OF CELLULOSE NITRATE AND 100 PARTS OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF BUTADIENE AND COPOLYMERS OF BUTADIENE WITH UP TO 50% STYRENE, SAID POLYMER HAVING A SUBSTANTIAL PROPORTION OF ITS DOUBLE BONDS CONVERTED, TO THE EPOXIDE GROUP
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |