US2500208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High coking binder compositions and products thereof
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1946-07-05
•
Granted: 1950-03-14
•
Expires: 1966-07-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick L Shea
- 👤 Leslie H Juel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/10; C10L5/14; C10L5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A POTENTIALLY REACTIVE BINDER COMPOSITION OF HIGH COKING PROPENSITY CONSISTING ESSENTIALLY OF PITCH MELTING ABOVE ABOUT 50*C. AND BELOW ABOUT 225*C., AND BLENDING MATERIAL CONTAINING A-NITRONAPHTHALENE.
Claim 2
Dependent Claim
26 words
A POTENTIALLY REACTIVE BINDER COMPOSITION OF HIGH COKING PROPENSITY CONSISTING ESSENTIALLY OF PITCH MELTING ABOVE ABOUT 50*C. AND BELOW ABOUT 225*C., AND BLENDING MATERIAL CONTAINING A-NITRONAPHTHALENE.
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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |