US3012487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxide compositions
Assignee: Shell USA Inc
•
Filing: 1959-04-10
•
Granted: 1961-12-12
•
Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Mika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOSITION COMPRISING PINE TAR AND A POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY GROUP.
Claim 2
Dependent Claim
15 words
A COMPOSITION COMPRISING PINE TAR AND A POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY 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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |