US3086001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyromellitonitrile/hydrogen sulfide reaction product
Assignee: Monsanto Chemicals Ltd
•
Filing: 1960-03-07
•
Granted: 1963-04-16
•
Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 Bernard S Wildi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:14
CPC Classifications
C; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
10 words
PYROMELLITONITRILE/HYDROGEN SULFIDE, IN SUBSTANTIALLY 1:2 MOLAR RATIO RESPECTIVELY, REACTION PRODUCTS.
Claim 2
Dependent Claim
10 words
PYROMELLITONITRILE/HYDROGEN SULFIDE, IN SUBSTANTIALLY 1:2 MOLAR RATIO RESPECTIVELY, REACTION PRODUCTS.
Claim 3
Dependent Claim
40 words
A PROCESS OF PYROLYZING A REACTION PRODUCT OF CLAIM 1 COMPRISING HEATING SAID REACTION PRODUCT IN AN INERT ATMOSPHERE AT A TEMPERATURE IN THE RANGE OF ABOUT 180-700$ C. FOR A TIME SUFFICIENT TO PROVIDE A PRODUCT HAVING SEMICONDUCTOR PROPERTIES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |