US2856309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated hydrocarbon drying oils containing a hardening agent and a process of making them
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-02-15
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Granted: 1958-10-14
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Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Gleason
- 👤 Donald F Koenecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:09
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
A COATING COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID BUTADIENE POLYMER AND AS A FILM HARDENING AGENT THEREFOR A COMPOUND CHOSEN FROM THE GROUP CONSISTING OF HEXAMETHYLENE DIAMINE, HEXAMETHYLENE DIAMINE DIACETATE, AND TRIETHYLENE TETRAMINE.
References Cited (Backward Citations)
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US2412942A
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US2395507A
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Cited
US2638460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |