US3240760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally resistant wholly aromatic polyamides
Assignee: Monsanto Co
•
Filing: 1962-09-11
•
Granted: 1966-03-15
•
Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Preston Jack
- 👤 Dobinson Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:54
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A WHOLLY AROMATIC THERMALLY RESISTANT FIBER-FORMING POLYCARBONAMIDE CONSISTING PREDOMINANTLY OF RECURRING STRUCTUREAL UNITS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
17 words
A WHOLLY AROMATIC THERMALLY RESISTANT FIBER-FORMING POLYCARBONAMIDE CONSISTING PREDOMINANTLY OF RECURRING STRUCTUREAL UNITS HAVING THE GENERAL FORMULA:
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |